Modelo de uso del condón en trabajadores sexuales masculinos de Argentina

Fil: Disogra, Carlos Esteban. Universidad Nacional de Córdoba. Facultad de Psicología; Argentina.Fil: Disogra, Carlos Esteban. Universidad Nacional de Córdoba. Secretaría de Ciencia y Técnica; ArgentinaSe presenta un modelo del uso del condón en trabajadores sexuales masculinos (TSM) de Argentina basado en la teoría de la acción razonada. El análisis de datos consistió en análisis factorial y regresiones múltiples en 4 conductas sexuales. La teoría de la acción razonada puede predecir el uso del condón en encuentros sexuales comerciales entre hombres donde se produjo introducción anal del cliente por parte del TSM hasta eyacular. Se discuten las implicaciones de los resultados para la prevención del virus de inmunodeficiencia humana (HIV) en trabajadores sexuales masculinos.Fil: Disogra, Carlos Esteban. Universidad Nacional de Córdoba. Facultad de Psicología; Argentina.Fil: Disogra, Carlos Esteban. Universidad Nacional de Córdoba. Secretaría de Ciencia y Técnica; ArgentinaOtras Psicologí

Behavioral and Social Influences on Food Choice

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/75438/1/j.1753-4887.1998.tb01732.x.pd

Doubly Robust Inference when Combining Probability and Non-probability Samples with High-dimensional Data

Non-probability samples become increasingly popular in survey statistics but may suffer from selection biases that limit the generalizability of results to the target population. We consider integrating a non-probability sample with a probability sample which provides high-dimensional representative covariate information of the target population. We propose a two-step approach for variable selection and finite population inference. In the first step, we use penalized estimating equations with folded-concave penalties to select important variables for the sampling score of selection into the non-probability sample and the outcome model. We show that the penalized estimating equation approach enjoys the selection consistency property for general probability samples. The major technical hurdle is due to the possible dependence of the sample under the finite population framework. To overcome this challenge, we construct martingales which enable us to apply Bernstein concentration inequality for martingales. In the second step, we focus on a doubly robust estimator of the finite population mean and re-estimate the nuisance model parameters by minimizing the asymptotic squared bias of the doubly robust estimator. This estimating strategy mitigates the possible first-step selection error and renders the doubly robust estimator root-n consistent if either the sampling probability or the outcome model is correctly specified

Non‐response adjustment of survey estimates based on auxiliary variables subject to error

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/96670/1/j.1467-9876.2012.01058.x.pd

Health-related characteristics and preferred methods of receiving health education according to dominant language among Latinos Aged 25 to 64 in a large Northern California health plan

<p>Abstract</p> <p>Background</p> <p>Latinos are a fast growing segment of the U.S. health care population. Acculturation factors, including English fluency, result in an ethnic group heterogeneous with regard to SES, health practices, and health education needs. This study examined how demographic and health-related characteristics of Spanish-dominant (SD), Bilingual (BIL), and English-dominant (ED) Latino men and women aged 25–64 differed among members of a large Northern California health plan.</p> <p>Methods</p> <p>This observational study was based on data from cohorts of 171 SD (requiring an interpreter), 181 BIL, and 734 ED Latinos aged 25–64 who responded to random sample health plan member surveys conducted 2005–2006. Language groups were compared separately by gender on education, income, behavioral health risks (smoking, obesity, exercise frequency, dietary practices, health beliefs), health status (overall health and emotional health, diabetes, hypertension, high cholesterol, heartburn/acid reflux, back pain, depression), computer and Internet access, and health education modality preferences.</p> <p>Results</p> <p>Compared with ED Latinos, higher percentages of the SD and BIL groups had very low educational attainment and low income. While groups were similar in prevalence of diabetes, hypertension, and high cholesterol, SD were less likely than ED Latinos to rate overall health and emotional well-being as good, very good, or excellent and more likely to report heartburn and back pain (women only). The groups were similar with regard to smoking and obesity, but among women, SD were more likely to be physically inactive than ED, and BIL were less likely than SD and ED groups to eat <3 servings of fruit/vegetables per day. SD and BIL of both genders were significantly less likely than ED Latinos to believe that health practices had a large impact on health. Compared to ED men and women, SD and BIL Latinos had significantly lower Internet and computer access. As a result, SD Latinos had a greater preference for lower technology health education modalities such as videos and taped phone messages.</p> <p>Conclusion</p> <p>There are important differences among Latinos of different English language proficiency with regard to education, income, health status, health behaviors, IT access, and health education modality preferences that ought to be considered when planning and implementing health programs for this growing segment of the U.S. population.</p