Background - The French Committee for Health Education has observed th
e adolescent's opinions and behaviours on smoking since 1977. Populati
on and methods. - The surveys were carried out on a representative sam
ple, made up by quotas method, of the population concerned (12 to 18 y
ears old). The last data (1995) were analyzed in order to evaluate pre
sent smoking behaviour and to measure the influence of the social envi
ronment. Results. - In 1995 more than one out of three (35.1%) young p
eople smoked at least once in a while; this smoking prevalence was nea
rly the same among boys (34.7%) as among girls (35.5%). Since 1977, th
e longterm trend of the rates showed a decrease and the monitoring of
the starting age proved that adolescents began to smoke more and more
later. The influence of peer and parents smoking was strong. The socio
economic status of the family and also the amount of pocket money were
other determinants of smoking. The family and school atmosphere playe
d an important role as well. Conclusions. - The influence of all these
environmental variables on the young person's smoking behaviour under
lines the necessity of developing simultaneously campaigns aimed at yo
ung people and actions among different populations. The emergence of a
positive status for the non-smoker supports the choice of the strateg
ies for the latest campaigns.