Five bibliographic databases (MEDLINE, EMBASE, PsycINFO, CINAHL and MIDRIS
Maternal) were searched from inception to January 7
th
2013 using OvidSP. The Cochrane
Library and ClinicalTrials.gov were searched with the same date limits. Searches were
conducted in English, using a combination of exploded Medical Subject Headings and text
terms related to obesity, mental disorders, pregnancy and postpartum (see Appendix 1,
available online at
http://links.lww.com/xxx). We also conducted forward and backward
citation tracking, hand-searched key journals (Obstetrics and Gynecology; BJOG: An
International Journal of Obstetrics and Gynaecology; International Journal of Obesity, all from 1998 onwards) and obtained expert recommendations for additional relevant studies.