Breathalyzer test: results and refusals to take the test of drivers intercepted under the DUI Spot-Check Campaign in Rio de Janeiro. / Teste do bafômetro: resultados e recusas de motoristas interceptados pela Operação Lei Seca no Rio de Janeiro.

Abstract This paper involved a cross-sectional study that evaluated the results and refusals to take the breathalyzer test among drivers intercepted by the Driving Under the Influence (DUI) Spot-Check Campaign (Operação Lei Seca) in the capital of Rio de Janeiro and Baixada Fluminense. It was conducted using data provided by the State Government which were collected from drivers intercepted in the months of December 2013 and January 2014. Descriptive analysis was conducted of the sample and of the association between gender, age and location variables with the result of the breathalyzer test and refusal to take the test using a logistic regression model. Of the 4756 (100%) drivers intercepted, 59 (1.2%) failed the breathalyzer test and 229 (4.8%) refused to take it. Only the location of interception variable was statistically significant with greater chances of failing (OR = 4.01) and refusal to take the test (OR = 5.14) among drivers intercepted in the Baixada Fluminense. Systematic monitoring actions taken by the DUI Spot-Check Campaign that have occurred for longer in the capital appear to have a positive impact on the drinking and driving behavior of drivers.

Teste do bafômetro: resultados e recusas de motoristas interceptados pela Operação Lei Seca no Rio de Janeiro / Breathalyzer test: results and refusals to take the test of drivers intercepted under the DUI Spot-Check Campaign in Rio de Janeiro

Resumo Estudo transversal que avaliou os resultados e as recusas ao teste do bafômetro entre motoristas interceptados pela Operação Lei Seca na capital do Rio de Janeiro e Baixada Fluminense. Realizado com base em dados cedidos pelo Governo do Estado que foram coletados durante atendimento de motoristas interceptados entre dezembro de 2013 e janeiro de 2014. Procederam-se análises descritivas da amostra e de associação entre as variáveis sexo, faixa etária e local de abordagem com as recusas e os resultados do teste do bafômetro através de um modelo de regressão logística. Dos 4756 (100%) condutores interceptados, 59 (1,2%) apresentaram resultado positivo no teste do bafômetro e 229 (4,8%) recusaram-no. Apenas a variável local de abordagem apresentou significância estatística com maiores chances de resultados positivos (OR = 4,01) e recusas ao teste (OR = 5,14) entre os condutores interceptados na Baixada Fluminense. As ações sistemáticas de fiscalização efetuadas pela Operação Lei Seca que ocorrem há mais tempo na capital parecem influenciar positivamente o comportamento de beber e dirigir dos motoristas.

Abstract Abstract This paper involved a cross-sectional study that evaluated the results and refusals to take the breathalyzer test among drivers intercepted by the Driving Under the Influence (DUI) Spot-Check Campaign (Operação Lei Seca) in the capital of Rio de Janeiro and Baixada Fluminense. It was conducted using data provided by the State Government which were collected from drivers intercepted in the months of December 2013 and January 2014. Descriptive analysis was conducted of the sample and of the association between gender, age and location variables with the result of the breathalyzer test and refusal to take the test using a logistic regression model. Of the 4756 (100%) drivers intercepted, 59 (1.2%) failed the breathalyzer test and 229 (4.8%) refused to take it. Only the location of interception variable was statistically significant with greater chances of failing (OR = 4.01) and refusal to take the test (OR = 5.14) among drivers intercepted in the Baixada Fluminense. Systematic monitoring actions taken by the DUI Spot-Check Campaign that have occurred for longer in the capital appear to have a positive impact on the drinking and driving behavior of drivers.

Is participation contagious? Evidence from a household vector control campaign in urban Peru.

OBJECTIVES: High rates of household participation are critical to the success of door-to-door vector control campaigns. We used the Health Belief Model to assess determinants of participation, including neighbour participation as a cue to action, in a Chagas disease vector control campaign in Peru. METHODS: We evaluated clustering of participation among neighbours; estimated participation as a function of household infestation status, neighbourhood type and number of participating neighbours; and described the reported reasons for refusal to participate in a district of 2911 households. RESULTS: We observed significant clustering of participation along city blocks (p<0.0001). Participation was significantly higher for households in new versus established neighbourhoods, for infested households, and for households with more participating neighbours. The effect of neighbour participation was greater in new neighbourhoods. CONCLUSIONS: Results support a 'contagion' model of participation, highlighting the possibility that one or two participating households can tip a block towards full participation. Future campaigns can leverage these findings by making participation more visible, by addressing stigma associated with spraying, and by employing group incentives to spray.

Adding sexual orientation questions to statewide public health surveillance: New Mexico's experience.

We examined refusal rates for sensitive demographic questions to determine whether questions on sexual orientation are too sensitive for routine use on public health surveys. We compared the percentage of active refusals in New Mexico for a sexual orientation question and 6 other sensitive demographic questions. In 2007 and 2008, refusal rates for sexual orientation questions were similar to rates for questions on race/ethnicity and weight and significantly lower than rates for questions on household income. Perceptions that sexual orientation is too controversial a topic to be included on state surveys may be unfounded.

[A comparison of two methods to adjust for non-response bias: field substitution and weighting non-response adjustments based on response propensity]. / Comparación de dos métodos para corregir el sesgo de no respuesta a una encuesta: sustitución muestral y ajuste según propensión a responder.

UNLABELLED: Unit non-response is a growing problem in sample surveys that can bias survey estimates if respondents and non-respondents differ systematically. OBJECTIVES: To compare the results of two nonresponse adjustment methods: field substitution and weighting nonresponse adjustment based on response propensity. METHODS: Field substitution and response propensity weights are used to adjust for non-response and their effect on the prevalence of six survey outcomes is compared. RESULTS: Although significant differences are found between respondents and non-respondents, only slight changes on prevalence estimates are observed after adjustment, with both techniques showing similar results. In the sole case of smoking, substitution seems to have further biased survey estimates. CONCLUSIONS: Our results suggest that when there is information available for both respondents and non-respondents, or if a careful sample substitution process is performed, weighting adjustments based on response propensity and field substitution produce comparable results on prevalence estimates.

Drug resistance strategies and substance use among adolescents in Monterrey, Mexico.

This study examined drug resistance strategies and substance use among adolescents from Monterrey, Mexico. The focus was strategies that U.S. adolescents use most often to resist using substances, including refuse (saying no), explain (declining with an explanation), avoid (staying away from situations where drugs are offered), and leave (exiting situations where drugs are offered). Using self-administered questionnaire data from a convenience sample of 327 Mexican students enrolled at two secondary schools (preparatorias), we tested whether frequent use of particular drug resistance strategies predicted actual substance use. Multiple regression results showed that different strategies were effective for different substances, that some effects were mediated by number of offers received, and that certain effects were stronger for females than for males. Students using the refuse strategy reported less cigarette use and less binge drinking; those using the avoid strategy reported less alcohol and cigarette use; and those using the leave strategy reported less binge drinking and, for females only, less marijuana use. Use of the explain strategy was not significantly related to substance use after controlling for use of other strategies. Findings are discussed in terms of Mexican cultural values and their implications for the design of prevention programs for Mexican youth. EDITORS' STRATEGIC IMPLICATIONS: Replication is necessary to evaluate some of the effects of sampling, the prevention model, implementation, and culture on these findings, but the study underscores the importance of recognizing and understanding the cultural context in which prevention programs--and the clients they serve--exist.

Implementation of informed consent for a cystic fibrosis newborn screening program in France: low refusal rates for optional testing.

OBJECTIVES: The French Association for Neonatal Screening implemented cystic fibrosis neonatal screening (CF NBS) region by region in France, from the beginning of the year 2002 to early 2003. The program uses an immunoreactive trypsinogen/DNA testing algorithm on dried blood samples obtained at 3 days of age. Incorporation of DNA testing necessitated compliance with official regulations and French "bioethics" laws: the need for a written consent from the patient/guardian and specific circulation of the prescription, sample, and results. To fulfill these obligations, the Ethics and Genetics committee of the French Association for Neonatal Screening recommended that informed consent should be obtained for all neonates at birth by having the parents sign directly on the sampling paper. This study was designed to evaluate the effect of the educational efforts used to obtain informed consent on acceptance of CF NBS. STUDY DESIGN: Data from the screening center in Lille, France, were analyzed to determine the rate of refusal of CF NBS in the 18 months after initiation of the informed consent process. RESULTS: The number of refusals for CF NBS declined from 0.8% at the start of the program to 0.2% at the end of the first year of the new process for obtaining written consent. CONCLUSIONS: Efforts to inform parents and professionals resulted in a significant decrease in the number of refusals for CF NBS.