[Trends in @entity286 , @entity167 and XXXX consumption among secondary school pupils in Barcelona, Spain (1987-1999)].

@entity167 @entity286 @entity1 @entity835
OBJECTIVE: To describe trends in @entity286 , @entity167 , and @entity835 consumption among secondary school pupils in Barcelona between 1987 and 1999. METHODS: Cross-sectional surveys administered to representative samples of pupils in the second year of secondary school between 1987 and 1999. The questionnaires were anonymous and self-completed. We present data from 5013 secondary school pupils from Barcelona who participated in one of the five surveys. RESULTS: Regular smoking (daily and weekly) showed a uniform decrease between 1987 and 1996. The results of the last survey (1999) showed an increase over those the 1996 survey, ranging from 13.4% for regular smoking to 38.7% for experimental smoking. Between 1987 and 1999, the percentage of schoolchildren who reported drinking at least half a glass of @entity167 at some time showed an overall decrease of 14.0%. No differences in sex were found in problematic @entity167 consumption, while a higher proportion of @entity1 (14.0%) than @entity1 (10.5%) reported getting drunk at some time. Whereas in 1996, 6.9% of the population studied had smoked @entity835 at some time, in 1999 this proportion was 7.3%, with no differences between sexes. CONCLUSIONS: During the study period regular smoking increased, @entity167 consumption decreased and @entity835 consumption tended to level-off. Differences between @entity1 and @entity1 tended to disappear.
