Ogburn 2013.

Methods	Location and time frame: no mention; investigator at university in Albuquerque, NM (USA) Design: randomized trial Sample size calculation and outcome of focus: no mention
Participants	General with N: 156 women Inclusion criteria: term vaginal or cesarean delivery Exclusion criteria: no mention
Interventions	Paragard IUD (CuT 380A) after vaginal or cesarean delivery Treatment: immediate (within 10 minutes of placenta delivery) Comparison: standard (4 to 12 weeks)
Outcomes	IUD insertion and continuation, reasons for discontinuation, complications Assessment times: 6‐week IUD check and contacted 3, 6, and 12 months after insertion
Notes	Information from conference abstract only 30 August 2014: Investigator communicated they are working on full report for submission in 1 to 2 months. They had not yet registered the trial at ClinicalTrials.gov.
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	No mention
Allocation concealment (selection bias)	Unclear risk	No mention
Blinding of participants and personnel (performance bias) All outcomes	Unclear risk	No mention
Incomplete outcome data (attrition bias) All outcomes	Unclear risk	Loss to follow‐up: no mention