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Logistic Regression Techniques (logistic + regression_techniques)
Selected Abstracts,To Whom Much Has Been Given...': Religious Capital and Community Voluntarism Among Churchgoing ProtestantsJOURNAL FOR THE SCIENTIFIC STUDY OF RELIGION, Issue 3 2000Jerry Z. Park Research on volunteering behavior has consistently found a positive relationship between religion and volunteering. Using a sample of churchgoing Protestants (N=1,738)from the Religious Identity and Influence Survey we examine the specific influences of religiosity, religious identity, religious socialization, and religious social networks on local volunteer activity in church programs and non-church organizations, as well as general volunteering tendencies. These influences are presented within the theoretical framework of religious capital. Logistic regression techniques were applied to determine the strength of the contribution of these influences while accounting for basic background factors. Findings suggest that churchgoing Protestants are influenced by all measures to some degree, but religiosity (specifically participation in church activities) remains the strongest influence. Significant religious influences overall are most pronounced within the context of church-related volunteering which suggests that churchgoing Protestants exhibit a strong sense of community identity through their local churches. A discussion of these results and their implications for volunteering follows. [source] The occurrence of commensal rodents in dwellings as revealed by the 1996 English House Condition SurveyJOURNAL OF APPLIED ECOLOGY, Issue 4 2001S.D. Langton Summary 1,The presence of commensal rodents was assessed in the 1996 English House Condition Survey (EHCS). Logistic regression techniques were used to identify the key factors that might determine the susceptibility of dwellings to infestation. 2,The overall percentages of dwellings that were infested, weighted to allow for the more intensive sampling used in certain categories of dwellings, were 1·83% for mice Mus domesticus, 0·23% for rats Rattus norvegicus living indoors and 1·60% for rats living outdoors. These figures excluded vacant properties, properties with some commercial use, and purpose-built flats, as these groups showed different patterns of infestation and were therefore excluded from the logistic regressions. 3,The prevalence of both rats and mice was significantly greater for dwellings where pets or livestock were kept in the garden. 4,Dwellings classed as unfit for human habitation were more likely to be infested with mice. 5,Dwellings in areas of low-density housing had a significantly higher prevalence of both rat and mouse infestation. This probably reflects the general suitability of the rural environment for commensal rodents. 6,Older properties had a relatively high prevalence of rats. This may be because their mature gardens provided suitable habitats for colonization. Once other confounding factors were taken into account, the age of the property did not influence the rate of infestation by mice. 7,Dwellings in areas with substantial problems, such as dereliction, litter, vacant properties and unkempt gardens, had a significantly higher prevalence of rats and mice. 8,This study reveals the value of applied ecological techniques, including logistic regression of presence,absence data, in understanding the distribution of commensal rodents in relation to dwellings, with the prospect of more effective management practices being developed as a consequence. [source] Medication use and risk of fallsPHARMACOEPIDEMIOLOGY AND DRUG SAFETY, Issue 2 2002C. Ineke Neutel PhD, FACE Abstract Purpose Injuries due to falls are an important public health concern, particularly for the elderly, and effective prevention is an ongoing endeavour. The present study has two related objectives: (1) to describe associations between drug use and falls in an institutionalized population, and (2) to identify a high risk subgroup within the larger population. Methods The initial analysis was based on a population of 227 residents who were followed over a 1-year period. Logistic regression techniques were used to estimate odds ratios (ORs) of the association of falls and drug use. The study of potential ,high-risk' groups employed a case,crossover design to estimate the risk of falling associated with starting a new drug course. Results Relatively weak ORs for risk of falling were observed for various drug classes; the highest OR was for benzodiazepines (BZD) at OR=1.8, (unadjusted). Residents taking multiple drugs were at particular risk for falling, e.g. an OR of 6.1, for those using 10+ drugs. The case,crossover analysis indicated that residents starting a new BZD/antipsychotic were at very high risk (OR,=,11.4,) for experiencing a fall. Conclusions Residents who took many different types of medications, as well as residents starting a new BZD/antipsychotics were at greatly increased risk of falling. These are high risk groups where increased monitoring or adjustments to drug regimens could lead to prevention of falls. Copyright © 2002 John Wiley & Sons, Ltd. [source] Does Satisfaction Reflect the Technical Quality of Mental Health Care?HEALTH SERVICES RESEARCH, Issue 2 2003Mark J. Edlund Objective. To analyze the relationship between satisfaction and technical quality of care for common mental disorders. Data Source. A nationally representative telephone survey of 9,585 individuals conducted in 1997,1998. Study Design. Using multinomial logistic regression techniques we investigated the association between a five-level measure of satisfaction with the mental health care available for personal or emotional problems and two quality indicators. The first measure, appropriate technical quality, was defined as use of either appropriate counseling or psychotropic medications during the prior year for a probable depressive or anxiety disorder. The second, active treatment, indicated whether the respondent had received treatment for a psychiatric disorder in the past year. Covariates included measures of physical and mental health and sociodemographic indicators. Principal Findings. Appropriate technical quality of care was significantly associated with higher levels of satisfaction. The strength of the association was moderate. Conclusions. Satisfaction is associated with technical quality of care. However, profiling quality of care with satisfaction will likely require large samples and case-mix adjustment, which may be more difficult for plans or provider groups to implement than measuring technical indicators. More importantly, satisfaction is not the same as technical quality, and our results suggest that at this time they cannot be made to approach each other closely enough to eliminate either. [source] Gender, Work, and Intimate Violence: Men's Occupational Violence Spillover and Compensatory ViolenceJOURNAL OF MARRIAGE AND FAMILY, Issue 4 2002Scott A. Melzer Researchers have rarely studied the effects of occupations on intimate violence, only occasionally distinguishing between blue-collar and white-collar work, and generally finding higher rates of reported abuse in the former group. This research incorporates ideas from feminist, work-family, and power or resource theories to examine the potential effects of occupations on men's violence toward wives and cohabiting female partners. Data from the 1988 National Survey of Families and Households (NSFH) were analyzed using logistic regression techniques. Hypotheses related to occupational spillover and compensation were tested with results suggesting that men in physically violent, female-dominated, professional specialty, and dangerous occupations are more likely to use violence against female partners, net of other commonly hypothesized predictors. The findings suggest that more detailed occupational data should be collected in future intimate violence research. [source] Strength of Habitat and Landscape Metrics in Predicting Golden-Headed Lion Tamarin Presence or Absence in Forest Patches in Southern Bahia, BrazilBIOTROPICA, Issue 3 2010Becky E. Raboy ABSTRACT We investigated the effects of forest fragmentation on golden-headed lion tamarins (Leontopithecus chrysomelas) by qualitatively and quantitatively characterizing the landscape throughout the species range, conducting surveys, and exploring predictive models of presence and absence. We identified 784 forest patches that varied in size, shape, core area, habitat composition, elevation, and distance to neighboring patches and towns. We conducted 284 interviews with local residents and 133 playback experiments in 98 patches. Results indicated a reduction in the western portions of the former species range. We tested whether L. chrysomelas presence or absence was related to the aforementioned fragmentation indices using Monte Carlo logistic regression techniques. The analysis yielded a majority of iterations with a one-term final model of which Core Area Index (percent of total area that is core) was the only significant type. Model concordance ranged between 65 and 90 percent. Area was highlighted for its potential predictive ability. Although final models for area lacked significance, their failure to reach significance was marginal and we discuss potential confounding factors weakening the term's predictive ability. We conclude that lower Core Area Index scores are useful indicators of forest patches at risk for not supporting L. chrysomelas. Taken together, our analyses of the landscape, survey results, and logistic regression modeling indicated that the L. chrysomelas metapopulation is facing substantial threat. The limited vagility of lion tamarins in nonforest matrix may lead to increasingly smaller and inbred populations subject to significant impact from edge effects and small population size. Local extinction is imminent in many forest patches in the L. chrysomelas range. Abstract in Portuguese is available at http://www.blackwell-synergy.com/loi/btp [source] | ||||||||||||||||