Breathalyzer test: results and refusals to take the test of drivers intercepted under the DUI Spot-Check Campaign in 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.