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Belief Model (belief + model)
Kinds of Belief Model Selected AbstractsA fuzzy-based multimodel system for reasoning about the number of software defectsINTERNATIONAL JOURNAL OF INTELLIGENT SYSTEMS, Issue 11 2005Marek Reformat Software maintenance engineers need tools to support their work. To make such tools relevant, they should provide engineers with quantitative input, as well as the knowledge needed to understand factors influencing maintenance activities. This article proposes an approach leading to multitechnique knowledge extraction and development of a comprehensive meta-model prediction system in the area of corrective maintenance. It dwells on elements of evidence theory and a number of fuzzy-based models. The models are developed using an evolutionary-based approach with different objectives applied to different subsets of data. Evidence theory,based Transferable Belief Model and belief function values assigned to generated models are used for reasoning purposes. The study comprises a detailed case for estimating the number of defects in a medical imaging system. © 2005 Wiley Periodicals, Inc. Int J Int Syst 20: 1093,1115, 2005. [source] Screening for cervical cancer among Israeli lesbian womenINTERNATIONAL NURSING REVIEW, Issue 4 2009M. Ben-Natan rn Background:, The proportion of lesbian women who contract the human papilloma virus may reach 13% or even 21%; however, lesbian women were found to receive Pap smear tests less often or less regularly. Aim:, To explore factors influencing lesbian women to undergo Pap smear tests and to determine whether the Health Belief Model (HBM) is able to predict whether lesbian women would be willing to undergo the test. Method:, This is a correlational quantitative study guided by the HBM. A convenience sample of 108 Israeli lesbian women was recruited from local events in the lesbian community in the city of Tel Aviv, Israel. Data were collected using a self-administered questionnaire. Findings:, Findings indicate that only 22.2% of the women had undergone Pap smear tests in the past, but a slightly higher proportion, 30.8%, intended to be tested during the next year. Older women were found to be more compliant with the test. Model-based factors affecting actual testing were perceived benefits and barriers. Factors affecting women's intention to be tested were perceived susceptibility, perceived benefits and general health motivation. Conclusions:, Effective strategies for nurses promoting cervical cancer screening among lesbians should address ways to improve familiarity with Pap smear tests, raise physicians' awareness of offering the test to lesbians and emphasize the importance of women-based medical teams. [source] Changes in diet quality score, macro- and micronutrients intake following a nutrition education intervention in postmenopausal womenJOURNAL OF HUMAN NUTRITION & DIETETICS, Issue 2 2007Y. Manios Abstract Introduction The aim of the current study was to assess the effectiveness of a nutrition education programme on post-menopausal women using self-reported nutrient intake data as well as a qualitative data obtained by the Healthy Eating Index (HEI). Materials and methods Seventy-five women (55,65 years old) were randomized to a dietary intervention group (IG: n = 39), attending regular nutrition education sessions for 5 months and to a control group (CG: n = 36). The intervention scheme was based on a combined application of the Health Belief Model and the Social Cognitive Theory, aiming to increase nutritional knowledge and self-efficacy of the subjects to adopt and maintain healthy dietary choices. Changes in self-reported macro- and micronutrients' intake as well as in the HEI total score and in its ten components were obtained. Results The IG subjects reported increasing their milk (P < 0.001) and total fat (P = 0.01) HEI scores, decreasing total fat intake (P = 0.050) and increasing calcium and vitamin D intakes (P < 0.001 respectively) to a higher extent compared with the changes reported by the CG. Conclusion The current nutrition education programme appears to have induced favourable changes for the IG in micronutrients' intake primarily related to bone health and in total fat intake. These changes were reflected in the individual HEI indices but not in total HEI score. [source] Why do diabetic patients not attend appointments with their dietitian?JOURNAL OF HUMAN NUTRITION & DIETETICS, Issue 3 2003F. J. M. Spikmans Abstract Purpose Determining the prevalence of and possible reasons for nonattendance of diabetic nutritional care clinics. Methods Data were collected by means of a telephone survey and a review of patient records among 293 (166 attendees and 127 nonattendees) patients undergoing outpatient treatment at a university hospital. The t -tests, chi-square tests and logistic regression analysis were used to identify potential determinants of nonattendance. The theoretical framework was primarily based on the Health Belief Model. Results In univariate analysis, nonattendance at the clinic was associated with a number of factors such as not visiting other care givers, risk perceptions, body-mass index, self-rated health, health locus of control, satisfaction with the dietitian, feelings of obligation to attend, and beliefs about the effectiveness of the treatment. In multivariate analysis only health locus of control and obligation to attend the visit were significant predictors of attendance. A significant number of respondents further reported that they perceived their visits to the dietitian to be of little use. Conclusion One in three diabetic patients undergoing outpatient treatment skipped one or more visits to their dietitian. Patient education to improve attendance should focus primarily on convincing patients that they can contribute to their own health, and may stress the obligation the patients have when making an appointment with the dietitian. [source] Health Beliefs toward Cardiovascular Risk Reduction in Patients Admitted to Chest Pain Observation UnitsACADEMIC EMERGENCY MEDICINE, Issue 5 2009David A. Katz MD Abstract Objectives:, Even after acute coronary syndrome (ACS) is ruled out, observational studies have suggested that many patients with nonspecific chest pain have a high burden of cardiovascular risk factors (CRFs) and are at increased long-term risk of ischemic heart disease (IHD)-related mortality. The aim of this study was to evaluate the premise that evaluation in an observation unit for symptoms of possible ACS is a "teachable moment" with regard to modification of CRFs. Methods:, The authors conducted a baseline face-to-face interview and a 3-month telephone interview of 83 adult patients with at least one modifiable CRF who presented with symptoms of possible ACS to an academic medical center. Existing questionnaires were adapted to measure Health Belief Model (HBM) constructs for IHD. Stage of change and self-reported CRF-related behaviors (diet, exercise, and smoking) were assessed using previously validated measures. The paired t-test or signed rank test was used to compare baseline and 3-month measures of health behavior within the analysis sample. Results:, Of the 83 study patients, 45 and 40% reported having received clinician advice regarding diet and physical activity during the observation unit encounter, respectively; 69% of current smokers received advice to quit smoking. Patients reported lower susceptibility to IHD (13.3 vs. 14.0, p = 0.06) and greater perceived benefit of healthy lifestyles (27.5 vs. 26.4, p = 0.0003) at 3-month follow-up compared to baseline. Patients also reported greater readiness to change and improved self-reported behaviors at follow-up (vs. baseline): decreased intake of saturated fat (10.1% vs. 10.5% of total calories, p = 0.005), increased fruit and vegetable intake (4.0 servings/day vs. 3.6 servings/day, p = 0.01), and fewer cigarettes (13 vs. 18, p = 0.002). Conclusions:, Observed changes in IHD health beliefs and CRF-related behaviors during follow-up support the idea that observation unit admission is a teachable moment. Patients with modifiable risk factors may benefit from systematic interventions to deliver CRF-related counseling during observation unit evaluation. [source] Validity assessment of the Breast Cancer Risk Reduction Health Belief scaleCANCER, Issue 21 2009Mfon Cyrus-David MBBS Abstract BACKGROUND: Women at increased risk of breast cancer (BC) are not widely accepting of chemopreventive interventions, and ethnic minorities are underrepresented in related trials. Furthermore, there is no validated instrument to assess the health-seeking behavior of these women with respect to these interventions. METHODS: By using constructs from the Health Belief Model, the authors developed and refined, based on pilot data, the Breast Cancer Risk Reduction Health Belief (BCRRHB) scale using a population of 265 women at increased risk of BC who were largely medically underserved, of low socioeconomic status (SES), and ethnic minorities. Construct validity was assessed using principal components analysis with oblique rotation to extract factors, and generate and interpret summary scales. Internal consistency was determined using Cronbach alpha coefficients. RESULTS: Test-retest reliability for the pilot and final data was calculated to be r = 0.85. Principal components analysis yielded 16 components that explained 64% of the total variance, with communalities ranging from 0.50-0.75. Cronbach alpha coefficients for the extracted factors ranged from 0.45-0.77. CONCLUSIONS: Evidence suggests that the BCRRHB yields reliable and valid data that allows for the identification of barriers and enhancing factors associated with use of breast cancer chemoprevention in the study population. These findings allow for tailoring treatment plans and intervention strategies to the individual. Future research is needed to validate the scale for use in other female populations. Cancer 2009. © 2009 American Cancer Society. [source] Perceived family history risk and symptomatic diagnosis of prostate cancerCANCER, Issue 8 2008The North Carolina Prostate Cancer Outcomes study Abstract BACKGROUND. Prostate cancer (PrCA) is the most common cancer and the second leading cause of cancer death among US men. African American (AA) men remain at significantly greater risk of PrCA diagnosis and mortality than other men. Many factors contribute to the experienced disparities. METHODS. Guided by the Health Belief Model, the authors surveyed a population of AA and Caucasian men newly diagnosed with PrCA to describe racial differences in perceived risk of PrCA and to examine whether 1) perceived high risk predicts greater personal responsibility for prostate care; and 2) greater personal responsibility for prostate care predicts earlier, presymptomatic diagnosis. Multivariate general linear modeling was performed. RESULTS. The authors found that men with a PrCA family history appreciated their increased risk, but AA men with a family history were less likely to appreciate their increased risk. Nevertheless, neither reporting a PrCA family history nor perceived increased risk significantly predicted screening and preventive behaviors. Furthermore, higher physician trust predicted increased likelihood to have regular prostate exams and screening, indicating that the racial differences in seeking prostate care may be mediated through physician trust. Expressed personal responsibility for screening and more frequent preventive behaviors were associated with more frequent screening diagnoses, fewer symptomatic diagnoses, and less frequent advanced cancers. CONCLUSIONS. Together, these results indicate that appreciating greater risk for PrCA is not sufficient to ensure that men will intend, or be able, to act. Increased trust in physicians may be a useful, central marker that efforts to reduce disparities in access to medical care are succeeding. Cancer 2008. © 2008 American Cancer Society. [source] Smoking after the age of 65 years: a qualitative exploration of older current and former smokers' views on smoking, stopping smoking, and smoking cessation resources and servicesHEALTH & SOCIAL CARE IN THE COMMUNITY, Issue 6 2006Susan Kerr BA MSc PhD RN HV Abstract The aim of this study was to explore older current/former smokers' views on smoking, stopping smoking, and smoking cessation resources and services. Despite the fact that older smokers have been identified as a priority group, there is currently a dearth of age-related smoking cessation research to guide practice. The study adopted a qualitative approach and used the health belief model as a conceptual framework. Twenty current and former smokers aged , 65 years were recruited through general practices and a forum for older adults in the West of Scotland. Data were collected using a semistructured interview schedule. The audio-taped interviews were transcribed and then analysed using content analysis procedures. Current smokers reported many positive associations with smoking, which often prevented a smoking cessation attempt. The majority were aware that smoking had damaged their health; however, some were not convinced of the association. A common view was that ,the damage was done', and therefore, there was little point in attempting to stop smoking. When suggesting a cessation attempt, while some health professionals provided good levels of support, others were reported as providing very little. Some of the participants reported that they had never been advised to stop smoking. Knowledge of local smoking cessation services was generally poor. Finally, concern was voiced regarding the perceived health risks of using nicotine replacement therapy. The main reasons why the former smokers had stopped smoking were health-related. Many had received little help and support from health professionals when attempting to stop smoking. Most of the former smokers believed that stopping smoking in later life had been beneficial to their health. In conclusion, members of the primary care team have a key role to play in encouraging older people to stop smoking. In order to function effectively, it is essential that they take account of older smokers' health beliefs and that issues, such as knowledge of smoking cessation resources, are addressed. [source] Data association in multi-target detection using the transferable belief modelINTERNATIONAL JOURNAL OF INTELLIGENT SYSTEMS, Issue 10 2001André Ayoun In the transferable belief model, a model for the quantified representation of beliefs, some masses can be allocated to the empty set. It reflects the conflict between the sources of information. This quantified conflict can be used in order to solve the problem of data association in a multi-target detection problem. We present and illustrate the procedure by studying an example based on the detection of submarines. Their number and the association of each sensor to a particular source are determined by the procedure. © 2001 John Wiley & Sons, Inc. [source] Breast Cancer Detection in Asymptomatic Women: Health Beliefs Implicated in Secondary PreventionJOURNAL OF APPLIED BIOBEHAVIORAL RESEARCH, Issue 2 2003Kanayo Umeh This study assessed the usefulness of health belief model (HBM) constructs in predicting the frequency and proficiency of breast self-examination among Greek women. Both additive and multiplicative functions were tested. Cross-sectional data from 195 women were analyzed. Health beliefs explained 16.5% and 19.7% of the variance in frequency and proficiency, respectively. Frequent and proficient breast examination was associated with fewer perceived barriers. Moreover, elevated confidence and susceptibility estimates predicted greater frequency and proficiency, respectively. One moderator interaction emerged, but this was attenuated after accounting for other health beliefs. These findings provide qualified support for the HBM and present a useful template for developing interventions to promote secondary prevention. [source] Hemodialysis patient beliefs by stage of fluid adherenceRESEARCH IN NURSING & HEALTH, Issue 2 2001Janet L. Welch Abstract Fluid limitations are difficult for hemodialysis patients to follow, and factors related to fluid adherence are not well known. The primary purpose of this study, which was guided by the health belief model and the transtheoretical model for behavior change, was to determine whether differences exist in perceived benefits, barriers, susceptibility, seriousness, or self-efficacy among individuals in different stages of fluid adherence. In a cross-sectional descriptive design, 148 persons (mean age=53.9 years; 52% male) were interviewed using a structured format. Hemodialysis patients in the action/maintenance stage perceived significantly more benefits to fluid adherence than persons in the precontemplation stage. Persons who were in the action/maintenance stage perceived they were significantly more susceptible to pulmonary edema than persons in the contemplation stage. Stage-appropriate interventions may be needed to target specific beliefsabout fluid adherence. © 2001 John Wiley & Sons, Inc. Res Nurs Health 24: 105,112, 2001 [source] | ||||||||||