Time trends for tobacco and alcohol use in youth-rated films popular in Mexico and Argentina, from 2004-2012

Objective. To examine and compare overall prevalence and time trends in tobacco and alcohol portrayals and brand appearances in youth-rated US and nationally-produced films that were the most successful in Argentina and Mexico from 2004-2012. Materials and methods. Top-grossing nationally produced films from Argentina (n=73), Mexico (n=85) and the US (n=643) were content analyzed. Logistic regression was used to determine differences between Mexican, Argentine and US produced films. Linear regression models assessed significant cross-country differences in the mean number of tobacco and alcohol seconds. Results. Films from Mexico and Argentina were more likely than US films to contain tobacco, (OR=4.2; p