Ahuja 2014.

Methods	Location and time frame: New Delhi, India; planned time frame 16 January 2012 to mid‐2013 Design: randomized controlled trial Sample size calculation and outcome of focus: based on expulsion rate 11% in immediate group and 28% in early group, power 80% and 95% CI, attrition rate 25%; total calculated as 215 with 108 in each group
Participants	General with N: 263 women with vaginal delivery in 1 hospital Inclusion criteria: 15 to 45 years of age; willing to have postpartum CuT insertion and follow‐up until 6 months postpartum Exclusion criteria: contraindications to CuT 380A insertion; cesarean delivery
Interventions	CuT 380A IUD postplacental insertion Treatment: immediate (within 10 minutes of placenta expulsion); report refers to as "postplacental" Comparison: early (10 minutes to 48 hours post delivery); report refers to as "immediate postpartum"
Outcomes	Expulsion rate, continuation rate, complication rate, removal rate for pain and bleeding, patient acceptability, failure rate Assessment times: 6 months to 1 year
Notes	Information from oral presentation (abstract only) and clinical trial listing 5 September 2014: Investigator communicated that final report was in progress
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Low risk	Computer‐generated randomization
Allocation concealment (selection bias)	Low risk	Sequentially numbered, sealed opaque envelopes
Blinding of participants and personnel (performance bias) All outcomes	High risk	Trial listing states "not applicable"
Incomplete outcome data (attrition bias) All outcomes	Unclear risk	Loss to follow‐up: not specified in abstract