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Medicina is published by MDPI from Volume 54 Issue 1 (2018). Articles in this Issue were published by another publisher in Open Access under a CC-BY (or CC-BY-NC-ND) licence. Articles are hosted by MDPI on as a courtesy and upon agreement with Lithuanian Medical Association, Lithuanian University of Health Sciences, and Vilnius University.
Open AccessArticle

Cigarette smoking and waiting time to pregnancy: results of a pilot study

Institute of Endocrinology, Kaunas University of Medicine
Klaipėda Hospital, Lithuania
Author to whom correspondence should be addressed.
Medicina 2007, 43(12), 959;
Received: 4 April 2007 / Accepted: 28 November 2007 / Published: 3 December 2007
Waiting time to pregnancy is an important characteristic of human reproductive health, which has not been investigated in Lithuania until now. Data on waiting time to pregnancy have been collected from medical records of 111 women admitted to the Department of Obstetrics, Klaipėda Hospital. Seven women in whom pregnancy was the result of infertility treatment were excluded from the analysis, and the rest 104 cases were analyzed. We evaluated waiting time to pregnancy in respect to the age of couples, contraceptive use, cigarette smoking of both partners, and some other features of obstetric history. The mean waiting time to pregnancy in the cohort was 5.21±7.03 months. If both partners smoked, the mean waiting time to pregnancy was significantly longer than in nonsmoking couples (7.68±9.41 vs. 4.30±5.73, P<0.05). Risk to have waiting time to pregnancy longer than 6 months was significantly higher if both partners smoked as compared to nonsmoking couples (OR 3.32, 95% CI 1.07–10.30, P=0.03), while paternal smoking and smoking of any partner did not increase this risk significantly. The other possible factors – age, living place (rural or city), previous contraceptive use, regularity of menstrual cycle, and frequency of intercourse – did not influence waiting time to pregnancy significantly. Results obtained from this pilot study enable us to plan and implement a larger-scale study of waiting time to pregnancy in Lithuanian population.
Keywords: waiting time to pregnancy; reproductive health; cigarette smoking waiting time to pregnancy; reproductive health; cigarette smoking
MDPI and ACS Style

Žilaitienė, B.; Diržauskas, M.; Preikša, R.T.; Matulevičius, V. Cigarette smoking and waiting time to pregnancy: results of a pilot study. Medicina 2007, 43, 959.

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