Active and passive smoking and fecundability in Danish pregnancy planners.

ABSTRACT:

Objective

To investigate the extent to which fecundability is associated with active smoking, time since smoking cessation, and passive smoking.

Design

Prospective cohort study.

Setting

Denmark, 2007-2011.

Patient(s)

A total of 3,773 female pregnancy planners aged 18-40 years.

Intervention(s)

None.

Main outcome measure(s)

Self-reported pregnancy. Fecundability ratios (FRs) and 95% confidence intervals (CIs) were estimated using a proportional probabilities model that adjusted for menstrual cycle at risk and potential confounders.

Result(s)

Among current smokers, smoking duration of ≥10 years was associated with reduced fecundability compared with never smokers (FR, 0.85, 95% CI 0.72-1.00). Former smokers who had smoked ≥10 pack-years had re

SUBMITTER: Radin RG 

PROVIDER: S-EPMC4104516 | biostudies-literature | 2014 Jul

REPOSITORIES: biostudies-literature