Smoking status and maternal weight trajectories during pregnancy and postpartum: Preliminary results from a pilot study.

Objective: To preliminarily examine throughout pregnancy and 12 months postpartum: 1) the critical timings of abnormal gestational weight gain (GWG) among quitters and non-quitters; 2) the consequences of abnormal GWG on weight retention during postpartum; 3) the potential difference in GWG by timing of quitting (early vs. late).

Methods: We included 59 pregnant smokers (49 quitters and 10 non-quitters) from two clinical pilot studies.