Services Utilization (services + utilization)

Distribution by Scientific Domains

Kinds of Services Utilization

  • health services utilization


  • Selected Abstracts


    Personal Care Services Utilization by Individuals With Developmental Disabilities

    FAMILY RELATIONS, Issue 2 2010
    Charlene Harrington
    This study examined factors associated with the use of personal care services (PCS) and the amount of authorized hours in California in 2004,2005. Of those Medicaid-eligible individuals with developmental disabilities living at home, 31% received PCS. When we controlled for client need, gender, and age, individuals who were Asian/Pacific Islanders, African Americans, Hispanics, and other races had higher odds of receiving PCS than Whites but were authorized between 16 and 39 hours fewer than Whites. [source]


    Differences in Services Utilization Between White and Mexican American DUI Arrestees

    ALCOHOLISM, Issue 1 2001
    Cheryl J. Cherpitel
    Background: Hispanics traditionally have been considered an underserved population in relation to medical care and related services utilization. Methods: Selected health and social services utilization (both alcohol-specific and non-alcohol-specific) during the last year was compared between a sample of 249 Mexican American (half of whom were born in Mexico) and 250 white participants interviewed in all five DUI (driving under the influence) treatment programs in one northern California county. Results: Among those who met DSM-IV criteria for alcohol dependence and/or alcohol abuse, 49% of the white subjects compared with 59% of the Mexican American subjects reported no utilization, 77% of whites and 82% of Mexican Americans reported no utilization in which drinking was a factor, and 70% of whites and 80% of Mexican Americans reported no contact with an alcohol program. Mexican Americans were also significantly less likely to report contact with more than one program, and among Mexican Americans, those born in Mexico were significantly less likely to report utilization than those born in the U.S. Conclusions: The data suggest that despite the higher rates of heavy drinking found among Mexican American DUI arrestees (especially those born in Mexico) in this sample, Mexican Americans with an alcohol use disorder are less likely to use health and social services than whites, and this may be related to country of birth and related variables that include health insurance. Significance: The data suggest that DUI programs may offer one of the few opportunities Me-ican American problem drinkers have of establishing contact with the health and social service system and, as such, would be well positioned to also offer other types of alcohol-related health and social services and referrals to this underserved population. These findings have implications for intervention efforts for problem drinking and prevention of DUI among Me-ican Americans, which are a rapidly growing ethnic minority in California. [source]


    Pediatric Out-of-hospital Emergency Medical Services Utilization in Kansas City, Missouri

    ACADEMIC EMERGENCY MEDICINE, Issue 6 2009
    Melissa K. Miller MD
    Abstract Objectives:, The objective was to describe epidemiologic features and usage patterns of pediatric emergency medical services (EMS) transports in Kansas City, Missouri. Methods:, The study consisted of a retrospective analysis of transports from January 1, 2002, to December 31, 2004, for Kansas City, Missouri, residents younger than 15 years of age (excluding interfacility transports. Data included demographics, insurance, day and time of transport, patient zip code, chief complaint, and number of individual transports. Rates were calculated using intercensal estimates for the denominator. All rates were expressed as number of transports per 1,000 persons per year (PPY). Results:, A total of 5,717 pediatric transports occurred in the 3-year study period. Transport rates were 18 PPY for all users, 42 PPY for those <1 year old, 23 PPY for ages 1,4 years, 12 PPY for ages 5,9 years, and 14 PPY for ages 10,14 years. Infants <1 year were more likely than children aged 5,9 years to use EMS (relative risk [RR] = 3.7, 95% confidence interval [CI] = 3.4 to 4.0). Males were more likely than females to use EMS (RR = 1.2, 95% CI = 1.1 to 1.3). Most (64%) were insured by Medicaid. Transports peaked between 4 pm and 8 pm, and lowest usage was 4 am to 8 am (p < 0.001). Overall usage did not vary by weekday or season. Respiratory transports were more common in the fall and winter, while trauma transports were more common in the summer (p < 0.001). The most common diagnoses were trauma (27%), neurologic (19%), and respiratory (18%). Eleven percent of users accessed EMS more than once (26% of all transports). There was a significant inverse linear relationship between transport rate and median family income by zip code (r = ,0.36, p < 0.001). Conclusions:, Children in zip codes with lower incomes, infants, and males were more likely to use EMS. Factors related to these increased transport rates are unknown. [source]


    Employer burden of mild, moderate, and severe major depressive disorder: mental health services utilization and costs, and work performance,

    DEPRESSION AND ANXIETY, Issue 1 2010
    Howard G. Birnbaum Ph.D.
    Abstract Background: Treatment utilization/costs and work performance for persons with major depressive disorder (MDD) by severity of illness is not well documented. Methods: Using National Comorbidity Survey-Replication (2001,2002) data, US workforce respondents (n=4,465) were classified by clinical severity (not clinically depressed, mild, moderate, severe) using a standard self-rating scale [Quick Inventory of Depressive Symptomatology Self-Report (QIDS-SR)]. Outcomes included 12-month prevalence of medical services/medications use/costs and workplace performance. Treatment costs (employer's perspective) were estimated by weighing utilization measures by unit costs obtained for similar services used by MDD patients in claims data. Descriptive analysis across three severity groups generated ,2 results. Results: Using a sample of 539 US workforce respondents with MDD, 13.8% were classified mild, 38.5% moderate, and 47.7% severe cases. Mental health services usage, including antidepressants, increased significantly with severity, with average treatment costs substantially higher for severe than for mild cases both regarding mental health services ($697 vs. $388, ,2=4.4, P=.019) and antidepressants ($256 vs. $88, ,2=9.0, P=.001). Prevalence rates of unemployment/disability increased significantly (,2=11.7, P=.003) with MDD severity (15.7, 23.3, and 31.3% for mild, moderate, and severe cases). Severely and moderately depressed workers missed more work than nondepressed workers; the monthly salary-equivalent lost performance of $199 (severely depressed) and $188 (moderately depressed) was significantly higher than for nondepressed workers (,2=10.3, P<.001). Projected to the US workforce, monthly depression-related worker productivity losses had human capital costs of nearly $2 billion. Conclusions: MDD severity is significantly associated with increased treatment usage/costs, treatment adequacy, unemployment, and disability and with reduced work performance. Depression and Anxiety, 2010. © 2009 Wiley-Liss, Inc. [source]


    Publicly funded medical savings accounts: expenditure and distributional impacts in Ontario, Canada

    HEALTH ECONOMICS, Issue 10 2008
    Jeremiah Hurley
    Abstract This paper presents the findings from simulations of the introduction of publicly funded medical savings accounts (MSAs) in the province of Ontario, Canada. The analysis exploits a unique data set linking population-based health survey information with individual-level information on all physician services and hospital services utilization over a four-year period. The analysis provides greater detail along three dimensions than have previous analyses: (1) the distributional impacts of publicly funded MSAs across individuals of differing health statuses, incomes, ages, and current expenditures; (2) the impact of differing degrees of risk adjustment for MSA contributions; and (3) the impact of MSA funding over multiple years, incorporating year-to-year variation in spending at the individual level. In addition, it analyses more plausible designs for publicly funded MSAs than the existing studies. Government uses information available from year t,,,1 to allocate its budget for year t in a manner that is ex ante fiscally neutral for the public sector: the government first withholds funds equal to expected catastrophic insurance payments under the MSA plan, and then allocates only the balance to individual MSA accounts. The government captures the savings associated with reduced health-care utilization under MSAs and we examine deductibles that vary by income rather than by current health-care expenditures. The impacts on public expenditures under these designs are more modest than in the previous studies and under plausible assumptions MSAs are predicted to decrease public expenditures. MSAs, however, are also predicted to have unavoidable negative distributional consequences with respect to both public expenditures and out-of-pocket spending. Copyright © 2007 John Wiley & Sons, Ltd. [source]


    The Effects of Geography and Spatial Behavior on Health Care Utilization among the Residents of a Rural Region

    HEALTH SERVICES RESEARCH, Issue 1 2005
    Thomas A. Arcury
    Objective. This analysis determines the importance of geography and spatial behavior as predisposing and enabling factors in rural health care utilization, controlling for demographic, social, cultural, and health status factors. Data Sources. A survey of 1,059 adults in 12 rural Appalachian North Carolina counties. Study Design. This cross-sectional study used a three-stage sampling design stratified by county and ethnicity. Preliminary analysis of health services utilization compared weighted proportions of number of health care visits in the previous 12 months for regular check-up care, chronic care, and acute care across geographic, sociodemographic, cultural, and health variables. Multivariable logistic models identified independent correlates of health services utilization. Data Collection Methods. Respondents answered standard survey questions. They located places in which they engaged health related and normal day-to-day activities; these data were entered into a geographic information system for analysis. Principal Findings. Several geographic and spatial behavior factors, including having a driver's license, use of provided rides, and distance for regular care, were significantly related to health care utilization for regular check-up and chronic care in the bivariate analysis. In the multivariate model, having a driver's license and distance for regular care remained significant, as did several predisposing (age, gender, ethnicity), enabling (household income), and need (physical and mental health measures, number of conditions). Geographic measures, as predisposing and enabling factors, were related to regular check-up and chronic care, but not to acute care visits. Conclusions. These results show the importance of geographic and spatial behavior factors in rural health care utilization. They also indicate continuing inequity in rural health care utilization that must be addressed in public policy. [source]


    Personal and social determinants of health services utilization by Mexican older people

    INTERNATIONAL JOURNAL OF OLDER PEOPLE NURSING, Issue 3 2010
    Maria Isabel Peñarrieta De Córdova PhD
    de córdova m.i.p., mier n., curi e.j.m., gómez t.g., quirarte n.h.g. & barrios f.f. (2009) Personal and social determinants of health services utilization by Mexican older people. International Journal of Older People Nursing 5, 193,201 doi: 10.1111/j.1748-3743.2009.00193.x Background., Increased healthcare needs among older individuals around the world demands a better understanding of factors influencing healthcare service utilization patterns. Objective., To examine personal and social correlates to health services utilization among Mexican older persons. Design and methods., This was a cross-sectional study conducted between 2004 and 2006 with 2030 Mexican adults 60 years and older and based on a health services utilization framework. A two-stage cluster sampling with probability proportionate to size was used. Participants were randomly selected and recruited in four metropolitan areas in Northeastern Mexico. Chi-square and Pearson's chi-squared tests and logistic regression were used for data analyses. Results., Significantly more women than men had lost a spouse and were illiterate. Also, females reported significantly poorer health, higher nutritional risk and lower ability to perform activities of daily and instrumental living than males. Predictors of healthcare utilization were: Having a caregiver during an illness; perceiving to have a health problem; being able to afford food, and having children. Conclusions., Predisposing, enabling and need factors are strong predictors of health services utilization among Mexican older persons. In addition, gender differences exist among this population in relation to health status, but not to health services demands. [source]


    Effects of the introduction of the German "Praxisgebühr" on outpatient care and treatment of patients with atopic eczema

    JOURNAL DER DEUTSCHEN DERMATOLOGISCHEN GESELLSCHAFT, Issue 10 2009
    Jochen Schmitt
    Summary Background: The introduction of a co-payment of 10 Euros per quarter and physician for adults (the so called "Praxisgebühr") as of January 01, 2004 was a significant health policy measure with unknown effects on medical care of patients with atopic eczema (AE). Methods: Analysis of an administrative healthcare database from Saxony, Germany. Comparison of outpatient care and treatment of 11,036 patients with AE (6,696 adults) in the year before (2003) and after (2004) the introduction of the co-payment using descriptive statistics and logistic regression modeling. Results: The proportion of adults with AE treated by dermatologists decreased from 52.8% in 2003 to 42.3% in the year after the co-payment was introduced. Consultations of general practitioners by adults and health services utilization by children/adolescents did not change. Treatment with topical calcineurin inhibitors in 2003 was an independent predictor for re-consultation in 2004 (p < 0.001). The proportion of adults receiving systemic steroids for AE significantly increased in 2004 (males: 2003: 5.9%, 2004:10.3%, p < 0.001; females: 2003: 5.7%, 2004: 8.2%, p < 0.001). The risk for treatment with systemic steroids increased with the decrease in consulting frequency due to AE relative to 2003 (p = 0.006). Conclusions: After the introduction of the German "Praxisgebühr" fewer patients with AE received dermatological treatment. Simultaneously, an unexpectedly significant increase in the (non evidence-based) treatment of AE with systemic steroids was observed, of which patients with relatively lower consultation frequency after the introduction of the co-payment were particularly affected. [source]


    Mortality Risk in Older Inner-City African Americans

    JOURNAL OF AMERICAN GERIATRICS SOCIETY, Issue 7 2007
    Theodore K. Malmstrom PhD
    OBJECTIVES: To investigate mortality risks in a sample of poor, inner-city-dwelling, older African Americans. DESIGN: Prospective cohort study. SETTING: St. Louis, Missouri. PARTICIPANTS: Six hundred twenty-two African Americans aged 68 to 102 at the time of their 1992 to 1994 baseline interviews. MEASUREMENTS: Risk factors previously identified in the literature were examined for seven categories: demographic, socioeconomic, psychosocial, biomedical, disability and physical function, perceived health, and health services utilization. Vital status was ascertained through 2002. RESULTS: Three hundred eighty-six subjects (62.1%) were deceased and 236 were alive (mortality higher than in matched controls). Significant risks for mortality were older age, male sex, annual income less than $10,000, cancer, cerebrovascular disease, dependencies in lower-body function, and number of physician visits in the 12 months before baseline. CONCLUSION: In addition to improving the risk factors for stroke and malignant disease in this population, studies focused on improving lower-body functioning may be warranted as a part of efforts aimed at enhancing longevity in older African-American adults. [source]


    Reductions in Costly Healthcare Service Utilization: Findings from the Care Advocate Program

    JOURNAL OF AMERICAN GERIATRICS SOCIETY, Issue 7 2006
    George R. Shannon PhD
    OBJECTIVES: To determine whether a telephone care-management intervention for high-risk Medicare health maintenance organization (HMO) health plan enrollees can reduce costly medical service utilization. DESIGN: Randomized, controlled trial measuring healthcare services utilization over three 12-month periods (pre-, during, and postintervention). SETTING: Two social service organizations partnered with a Medicare HMO and four contracted medical groups in southern California. PARTICIPANTS: Eight hundred twenty-three patients aged 65 and older; eligibility was determined using an algorithm to target older adults with high use of insured healthcare services. INTERVENTION: After assessment, members in the intervention group were offered mutually agreed upon referrals to home- and community-based services (HCBS), medical groups, or Medicare HMO health plan and followed monthly for 1 year. MEASUREMENTS: Insured medical service utilization was measured across three 12-month periods. Acceptance and utilization of Care Advocate (CA) referrals were measured during the 12-month intervention period. RESULTS: CA intervention members were significantly more likely than controls to use primary care physician services (odds ratio (OR)=2.05, P<.001), and number of hospital admissions (OR=0.43, P<.01) and hospital days (OR=0.39, P<.05) were significantly more stable for CA group members than for controls. CONCLUSION: Results suggest that a modest intervention linking older adults to HCBS may have important cost-saving implications for HMOs serving community-dwelling older adults with high healthcare service utilization. Future studies, using a national sample, should verify the role of telephone care management in reducing the use of costly medical services. [source]


    Healthcare Utilization of Elderly Persons Hospitalized After a Noninjurious Fall in a Swiss Academic Medical Center

    JOURNAL OF AMERICAN GERIATRICS SOCIETY, Issue 6 2006
    Laurence Seematter-Bagnoud MD
    OBJECTIVES: To determine the risk of hospital readmission, nursing home admission, and death, as well as health services utilization over a 6-month follow-up, in community-dwelling elderly persons hospitalized after a noninjurious fall. DESIGN: Prospective cohort study with 6-month follow-up. SETTING: Swiss academic medical center. PARTICIPANTS: Six hundred ninety persons aged 75 and older hospitalized through the emergency department. MEASUREMENTS: Data on demographics and medical, physical, social, and mental status were collected upon admission. Follow-up data were collected from the state centralized billing system (hospital and nursing home admission) and proxies (death). RESULTS: Seventy patients (10%) were hospitalized after a noninjurious fall. Fallers had shorter hospital stays (median 4 vs 8 days, P<.001) and were more frequently discharged to rehabilitation or respite care than nonfallers. During follow-up, fallers were more likely to be institutionalized (adjusted hazard ratio=1.82, 95% confidence interval=1.03,3.19, P=.04) independent of comorbidity and functional and mental status. Overall institutional costs (averaged per day of follow-up) were similar for both groups ($138.5 vs $148.7, P=.66), but fallers had lower hospital costs and significantly higher rehabilitation and long-term care costs ($55.5 vs $24.1, P<.001), even after adjustment for comorbidity, living situation, and functional and cognitive status. CONCLUSION: Elderly patients hospitalized after a noninjurious fall were twice as likely to be institutionalized as those admitted for other medical conditions and had higher intermediate and long-term care services utilization during follow-up, independent of functional and health status. These results provide direction for interventions needed to delay or prevent institutionalization and reduce subsequent costs. [source]


    The Identification of Seniors At Risk Screening Tool: Further Evidence of Concurrent and Predictive Validity

    JOURNAL OF AMERICAN GERIATRICS SOCIETY, Issue 2 2004
    Nandini Dendukuri PhD
    Objectives: To evaluate the validity of the Identification of Seniors at Risk (ISAR) screening tool for detecting severe functional impairment and depression and predicting increased depressive symptoms and increased utilization of health services. Setting: Four university-affiliated hospitals in Montreal. Design: Data from two previous studies were available: Study 1, in which the ISAR scale was developed (n=1,122), and Study 2, in which it was used to identify patients for a randomized trial of a nursing intervention (n=1,889 with administrative data, of which 520 also had clinical data). Participants: Patients aged 65 and older who were to be released from an emergency department (ED). Measurements: Baseline validation criteria included premorbid functional status in both studies and depression in Study 2 only. Increase in depressive symptoms at 4-month follow-up was assessed in Study 2. Information on health services utilization during the 5 months after the ED visit (repeat ED visits and hospitalization in both studies, visits to community health centers in Study 2) was available by linkage with administrative databases. Results: Estimates of the area under the receiver operating characteristic curve (AUC) for concurrent validity of the ISAR scale for severe functional impairment and depression ranged from 0.65 to 0.86. Estimates of the AUC for predictive validity for increased depressive symptoms and high utilization of health services ranged from 0.61 to 0.71. Conclusion: The ISAR scale has acceptable to excellent concurrent and predictive validity for a variety of outcomes, including clinical measures and utilization of health services. [source]


    Health characteristics and health services utilization in older adults with intellectual disability living in community residences

    JOURNAL OF INTELLECTUAL DISABILITY RESEARCH, Issue 4 2002
    M. P. Janicki
    Abstract Background The health status and health needs of adults with intellectual disability (ID) change with advancing age, and are often accompanied by difficulties with vision, hearing, mobility, stamina and some mental processes. Aim The present study collected health status information on a large cohort of adults with ID aged , 40 years living in small group, community-based residences in two representative areas of New York State, USA. Method Adult group home residents with ID aged between 40 and 79 years (n = 1371) were surveyed to determine their health status and patterns of morbidity. Results Most subjects were characterized as being in good health. The frequency of cardiovascular, musculoskeletal and respiratory conditions, and sensory impairments increased with age, while neurological, endocrine and dermatological diseases did not. Psychiatric and behavioural disorders declined with increasing age, at least through 70 years of age. Although most conditions increased with age, their frequency varied by sex and level of ID. Frequencies of age-related organ system morbidity were compared to data from the National Health and Nutrition Evaluation Survey III. It was found that adults with ID had a lower overall reported frequency of cardiovascular risk factors, including hypertension and hyperlipidaemia, and adult-onset diabetes. Inconsistencies with mortality data among older adults with ID were observed (which showed equal if not greater prevalence of deaths as a result of cardiovascular disease and cancer). Conclusion These results suggest that either a cohort effect is operating (i.e. contemporary populations are healthier than previous populations), or that there may be under-recognition of select risk factors and diseases. [source]


    Differences in Services Utilization Between White and Mexican American DUI Arrestees

    ALCOHOLISM, Issue 1 2001
    Cheryl J. Cherpitel
    Background: Hispanics traditionally have been considered an underserved population in relation to medical care and related services utilization. Methods: Selected health and social services utilization (both alcohol-specific and non-alcohol-specific) during the last year was compared between a sample of 249 Mexican American (half of whom were born in Mexico) and 250 white participants interviewed in all five DUI (driving under the influence) treatment programs in one northern California county. Results: Among those who met DSM-IV criteria for alcohol dependence and/or alcohol abuse, 49% of the white subjects compared with 59% of the Mexican American subjects reported no utilization, 77% of whites and 82% of Mexican Americans reported no utilization in which drinking was a factor, and 70% of whites and 80% of Mexican Americans reported no contact with an alcohol program. Mexican Americans were also significantly less likely to report contact with more than one program, and among Mexican Americans, those born in Mexico were significantly less likely to report utilization than those born in the U.S. Conclusions: The data suggest that despite the higher rates of heavy drinking found among Mexican American DUI arrestees (especially those born in Mexico) in this sample, Mexican Americans with an alcohol use disorder are less likely to use health and social services than whites, and this may be related to country of birth and related variables that include health insurance. Significance: The data suggest that DUI programs may offer one of the few opportunities Me-ican American problem drinkers have of establishing contact with the health and social service system and, as such, would be well positioned to also offer other types of alcohol-related health and social services and referrals to this underserved population. These findings have implications for intervention efforts for problem drinking and prevention of DUI among Me-ican Americans, which are a rapidly growing ethnic minority in California. [source]


    The socio-economic burden of asthma is substantial in Europe

    ALLERGY, Issue 1 2008
    S. Accordini
    Background: Few data are available on the asthma burden in the general population. We evaluated the level and the factors associated with the asthma burden in Europe. Methods: In 1999,2002, 1152 adult asthmatics were identified in the European Community Respiratory Health Survey (ECRHS)-II and the socio-economic burden (reduced activity days and hospital services utilization in the past 12 months) was assessed. Results: The asthmatics with a light burden (only a few reduced activity days) were 13.2% (95% CI: 11.4,15.3%), whereas those with a heavy burden (many reduced activity days and/or hospital services utilization) were 14.0% (95% CI: 12.1,16.1%). The burden was strongly associated with disease severity and a lower quality of life. Obese asthmatics had a significantly increased risk of a light [relative risk ratio (RRR) = 2.17; 95% CI: 1.18,4.00] or a heavy burden (RRR = 2.77; 95% CI: 1.52,5.05) compared with normal/underweight subjects. The asthmatics with frequent respiratory symptoms showed a threefold (RRR = 2.74; 95% CI: 1.63,4.61) and sixfold (RRR = 5.76; 95% CI: 3.25,10.20) increased risk of a light or a heavy burden compared with asymptomatic asthmatics, respectively. Moreover, the lower the forced expiratory volume in 1 s % predicted, the higher the risk of a heavy burden. The coexistence with chronic cough/phlegm only increased the risk of a heavy burden (RRR = 1.88; 95% CI: 1.16,3.06). An interaction was found between gender and IgE sensitization, with nonatopic asthmatic females showing the highest risk of a heavy burden (21.6%; 95% CI: 16.9,27.1%). Conclusions: The asthma burden is substantial in Europe. A heavy burden is more common in asthmatics with obesity, frequent respiratory symptoms, low lung function, chronic cough/phlegm and in nonatopic females. [source]


    Upper extremity pain and computer use among engineering graduate students: A replication study

    AMERICAN JOURNAL OF INDUSTRIAL MEDICINE, Issue 2 2009
    Cammie Chaumont Menéndez PhD
    Abstract Background Recent literature identified upper extremity musculoskeletal symptoms at a prevalence of >40% in college populations. The study objectives were to determine weekly computer use and the prevalence of upper extremity musculoskeletal symptoms in a graduate student population, and make comparisons with previous graduate and undergraduate cohorts. Methods One hundred sixty-six graduate students completed a survey on computing and musculoskeletal health. Associations between individual factors and symptom status, functional limitations, academic impact, medication use, and health services utilization were determined. Logistic regression analyses evaluated the association between symptom status and computing. Cross-study comparisons were made. Results More symptomatic participants experienced functional limitations than asymptomatic participants (74% vs. 32%, P,<,0.001) and reported medication use for computing pain (34% vs. 10%, P,<,0.01). More participants who experienced symptoms within an hour of computing used health services compared to those who experienced symptoms after an hour of computer use (60% vs. 12%, P,<,0.01). Years of computer use (OR,=,1.59, 95% CI 1.05,2.40) and number of years in school where weekly computer use was more than 10 hr (OR,=,1.56, 95% CI 1.04,2.35) were associated with pain within an hour of computing. Cross-study comparisons found college populations more similar than different. Conclusion The overall findings reinforced previous literature documenting the prevalence of upper extremity musculoskeletal symptoms in college populations, suggesting an important population for participating in public health interventions designed to support healthy computing practices and identify risk factors important to evaluate in future cohort studies. Am. J. Ind. Med. 52:113,123, 2009. © 2008 Wiley-Liss, Inc. [source]


    Trial of nurse-run asthma clinics based in general practice versus usual medical care

    RESPIROLOGY, Issue 3 2004
    Louis S. PILOTTO
    Objective: The aim of this study was to assess the ability of nurse-run asthma clinics based in general practice compared with usual medical care to produce at least a moderate improvement in the quality of life of adults with asthma. Methodology: A randomized controlled trial involving 80 asthma clinic and 90 usual medical care asthma participants, aged 18 years and older was conducted in 11 general practices in Adelaide. The main outcome measure was the St George's respiratory questionnaire (SGRQ), from which quality-of-life scores were used to assess therapeutic benefit. Lung function measurements and health services utilization data were also collected. Results: One hundred and fifty-three participants (90%) were reviewed at follow up after 6,9 months. There was little difference between groups in baseline measures or for the 6-month follow-up, outcomes,, including, the, mean, difference, in, total, SGRQ, scores, (,0.5,, 95%, confidence, interval, (CI) ,4.0, 2.9) and the mean difference in percentage predicted FEV1 (2.3%, 95% CI ,0.7, 5.3 pre-bronchodilator; 0.4%, 95% CI ,5.1, 5.9 post-bronchodilator). Trends in health services utilization were noted. Conclusions: Nurse-run asthma clinics based in general practice and usual medical care were similar in their effects on quality of life and lung function in adults. These findings cannot be generalized to hospital outpatients and other clinics that manage more severe asthmatic patients. [source]


    Perspectives on Health Among Adult Users of Illicit Stimulant Drugs in Rural Ohio

    THE JOURNAL OF RURAL HEALTH, Issue 2 2006
    Harvey A. Siegal PhD
    ABSTRACT:,Context: Although the nonmedical use of stimulant drugs such as cocaine and methamphetamine is increasingly common in many rural areas of the United States, little is known about the health beliefs of people who use these drugs. Purpose: This research describes illicit stimulant drug users' views on health and health-related concepts that may affect their utilization of health care services. Methods: A respondent-driven sampling plan was used to recruit 249 not-in-treatment, nonmedical stimulant drug users who were residing in 3 rural counties in west central Ohio. A structured questionnaire administered by trained interviewers was used to collect information on a range of topics, including current drug use, self-reported health status, perceived need for substance abuse treatment, and beliefs about health and health services. Findings: Participants reported using a wide variety of drugs nonmedically, some by injection. Alcohol and marijuana were the most commonly used drugs in the 30 days prior to the interview. Powder cocaine was used by 72.3% of the sample, crack by 68.3%, and methamphetamine by 29.7%. Fair or poor health status was reported by 41.3% of the participants. Only 20.9% of the sample felt they needed drug abuse treatment. Less than one third of the sample reported that they would feel comfortable talking to a physician about their drug use, and 65.1% said they preferred taking care of their problems without getting professional help. Conclusions: Stimulant drug users in rural Ohio are involved with a range of substances and hold health beliefs that may impede health services utilization. [source]


    Societal and Individual Determinants of Medical Care Utilization in the United States

    THE MILBANK QUARTERLY, Issue 4 2005
    RONALD ANDERSEN
    A theoretical framework for viewing health services utilization is presented, emphasizing the importance of the (1) characteristics of the health services delivery system, (2) changes in medical technology and social norms relating to the definition and treatment of illness, and (3) individual determinants of utilization. These three factors are specified within the context of their impact on the health care system. Empirical findings are discussed which demonstrate how the framework might be employed to explain some key patterns and trends in utilization. In addition, a method is suggested for evaluating the utility of various individual determinants of health services utilization used in the framework for achieving a situation of equitable distribution of health services in the United States. [source]


    Imputation and Variable Selection in Linear Regression Models with Missing Covariates

    BIOMETRICS, Issue 2 2005
    Xiaowei Yang
    Summary Across multiply imputed data sets, variable selection methods such as stepwise regression and other criterion-based strategies that include or exclude particular variables typically result in models with different selected predictors, thus presenting a problem for combining the results from separate complete-data analyses. Here, drawing on a Bayesian framework, we propose two alternative strategies to address the problem of choosing among linear regression models when there are missing covariates. One approach, which we call "impute, then select" (ITS) involves initially performing multiple imputation and then applying Bayesian variable selection to the multiply imputed data sets. A second strategy is to conduct Bayesian variable selection and missing data imputation simultaneously within one Gibbs sampling process, which we call "simultaneously impute and select" (SIAS). The methods are implemented and evaluated using the Bayesian procedure known as stochastic search variable selection for multivariate normal data sets, but both strategies offer general frameworks within which different Bayesian variable selection algorithms could be used for other types of data sets. A study of mental health services utilization among children in foster care programs is used to illustrate the techniques. Simulation studies show that both ITS and SIAS outperform complete-case analysis with stepwise variable selection and that SIAS slightly outperforms ITS. [source]


    Hospital Characteristics and Emergency Department Care of Older Patients Are Associated with Return Visits

    ACADEMIC EMERGENCY MEDICINE, Issue 5 2007
    DrPH, Jane McCusker MD
    ObjectivesTo explore hospital characteristics and indicators of emergency department (ED) care of older patients associated with return visits to the ED. MethodsProvincial databases in the province of Quebec, Canada, and a survey of ED geriatric services were linked at the individual and hospital level, respectively. All general acute care adult hospitals with at least 100 eligible patients who visited an ED during 2001 were included (N= 80). The study population (N= 140,379) comprised community-dwelling individuals aged 65 years and older who made an initial ED visit in 2001 and were discharged home. Characteristics of the hospitals included location, number of ED beds, ED resources, and geriatric services in the hospital and the ED. Indicators of ED care at the initial visit included day of the visit, availability of hospital beds, and relative crowding. The main outcome was time to first return ED visit; the authors also analyzed the type of return visit (with or without hospital admission at return visit, and return visits within seven days). ResultsIn multilevel multivariate analyses adjusting for patient characteristics (sociodemographic, ED diagnosis, comorbidity, prior health services utilization), the following variables were independently associated (p < 0.05) with a shorter time to first return ED visit: more limited ED resources, fewer than 12 ED beds, no geriatric unit, no social worker in the ED, fewer available hospital beds at the time of the ED visit, and an ED visit on a weekend. ConclusionsIn general, more limited ED resources and indicators of ED care (weekend visits, fewer available hospital beds) are associated with return ED visits in seniors, although the magnitude of the effects is generally small. [source]


    Anticipating Demand for Emergency Health Services due to Medication-related Adverse Events after Rapid Mass Prophylaxis Campaigns

    ACADEMIC EMERGENCY MEDICINE, Issue 3 2007
    Nathaniel Hupert MD
    Objectives: Mass prophylaxis against infectious disease outbreaks carries the risk of medication-related adverse events (MRAEs). The authors sought to define the relationship between the rapidity of mass prophylaxis dispensing and the subsequent demand for emergency health services due to predictable MRAEs. Methods: The authors created a spreadsheet-based computer model that calculates scenario-specific predicted daily MRAE rates from user inputs by applying a probability distribution to the reported timing of MRAEs. A hypothetical two- to ten-day prophylaxis campaign for one million people using recent data from both smallpox vaccination and anthrax chemoprophylaxis campaigns was modeled. Results: The length of a mass prophylaxis campaign plays an important role in determining the subsequent intensity in emergency services utilization due to real or suspected adverse events. A two-day smallpox vaccination scenario would produce an estimated 32,000 medical encounters and 1,960 hospitalizations, peaking at 5,246 health care encounters six days after the start of the campaign; in contrast, a ten-day campaign would lead to 41% lower peak surge, with a maximum of 3,106 encounters on the busiest day, ten days after initiation of the campaign. MRAEs with longer lead times, such as those associated with anthrax chemoprophylaxis, exhibit less variability based on campaign length (e.g., 124 out of an estimated 1,400 hospitalizations on day 20 after a two-day campaign versus 103 on day 24 after a ten-day campaign). Conclusions: The duration of a mass prophylaxis campaign may have a substantial impact on the timing and peak number of clinically significant MRAEs, with very short campaigns overwhelming existing emergency department (ED) capacity to treat real or suspected medication-related injuries. While better reporting of both incidence and timing of MRAEs in future prophylaxis campaigns should improve the application of this model to community-based emergency preparedness planning, these results highlight the need for coordination between public health and emergency medicine planning for infectious disease outbreaks to avoid preventable surges in ED utilization. [source]