[Risk factors for heavy cigarette smoking in young men: a longitudinal study].

In a three-year follow-up on 841 males questioned at the age of 19 and 22 years, an attempt has been made to determine the characteristics of social situation and personality which are correlated with constant heavy cigarette consumption, and what other risk factors are also involved. Bivariate analyses, multiple regression, and path analysis revealed the following influencing factors: personality traits such as nervousness and extraversion, low social integration, low assessment of the subject's own health situation, loose ties with parents, lower school level, increased alcohol and cannabis consumption. No correlation was found with religion, social status of parents, masculinity, blood group or rhesus factor.