The 13th World Conference on Tobacco OR Health

Tobacco smoking during pregnancy is the single largest modifiable risk for pregnancy-related morbidity and mortality. Many pregnant women continue to smoke during pregnancy despite advice from health professionals. Tobacco smoke contains thousands of chemicals, manu of which may contribute to reproductive toxicity. Carbon monoxide is the most biologically significant toxin for the fetus.

Objective: To estimate the prevalence of pregnant smoker during pregnancy and give up with use carbone monoxide measurements in follow-up of pregnant women.

Methods: Between 2001 to 2005 we monitored 1500 pregnants women. 45 % pregnant smoker , aged 18 to 37 years, mean average age of 33 years, SD +/- 13.For more than six visits came 1457 pregnants women. In this sample smoking status and level of nicotine dependence was assessed, as vell as kind of pharmacological treatment and one year abstinence valided by CO in expired air.

Results: Among our pregnants women : mean age of the first cigarette was 14,5 years (SD +:- 2,8). Mean age of regular smoking was 19 years (SD+:- 4,5). Mean FTND was 7,3 (SD +:- 1,2). After one year 33 % pregnants women came, 29 % were abstinent with CO in expired air 5 ppm or less.Mean number use CO measurement in follow-up of pregnant smoker was 4. Mean number of visits was 10 during the pregnancy. Conclusion : the abstinence rate was 29 % after one year. The use use CO measurement in follow-up of pregnant smoker is a methodology for increased the motivation to give up during the pregnancy