Study	Reason for exclusion
Chi 1985	Subgroup analysis of Cole 1984
Elsedeek 2012	Not an RCT, as women chose the timing for insertion; focus on bleeding
Eroglu 2006	Not an RCT, as women chose the timing for insertion
Lara Ricalde 2006	Participants were randomly assigned to type of IUD but not to time frame for insertion.
Letti Müller 2005	Not an RCT; assignment based on type of delivery (vaginal or cesarean)
Shikary 1987	Although a randomized controlled trial, IUD insertions took place 4 to 6 weeks postpartum.
Stauble 2014	Investigator communicated that trial was stopped in 2011. No report prepared because larger study from Pittsburgh was published as this trial began. ClinicalTrials.gov stated expected completion was 2014.
Stuart 2015	Primary outcome of breastfeeding Insertion within 48 hours of delivery versus 4 to 8 weeks, according to listing in ClinicalTrials.gov
Tatum 1996	Although the title states this was a randomized controlled trial, women were allocated by alternate assignment, a non‐random technique that precluded allocation concealment.
Thiery 1983	Data included in Cole 1984
Turok 2014	Does not have relevant outcome measure for this review; effect on lactation of immediate versus standard insertion of LNG‐IUS