[Determinants of smoking and cessation during pregnancy]

Smoking during pregnancy is harmful to both foetus and the woman herself. Identification of determinants of the smoking and cessation is important for any intervention efforts. Then the aim is finding these factors and assesment their impact.

18,177 medical records gathered in 2001-2002 througout nationwide telematic perinatal registry. Binomial and multinomial regression was used.

27% of pregnant woman cease smoking at onset of the pregnancy, 36,4% limit or cease smoking during the pregnancy, 36,5% continue smoking withuot alteration. The smoking and cessation during pregrancy is assotiated mainly with sociodemografic and also with heath charakteristics.

Distribution of smoking women one year befor pregnancy is two modal with extrema for 18 and 45 years of age. For smoking during pregnancy urban area increases the odd, pathology in pregnancy increases the odd, married status decreases the odd, the odd decrease with increasing level of education. For smoking cessation at onset of pregnancy urban area increases the odd, first baby increases the odd , married status increases the odd, the odds increase with increasing maternal age. Change in odds doesn't depend on pathology of pregnancy and maternal diseases in past. Distribution by age of the percentage of smoking women proves effectiveness of the smoking control in Poland. Crucial for smoking and cessation are socjodemographic factors, in smaller degree heath factors. Pregnancy is favourable time for smoking interventions programs.