Chu 2011.

Methods	Randomisd controlled trial
Participants	Inclusion criteria Pregnant women giving birth preterm – 24 to 32 weeks' gestation No information as to whether included multiple births or not. N = 38 babies Exclusion criteria
Interventions	Intervention: DCC Clamping at 30 ‐ 45 secs Mean clamping time 39.7 secs N = 19 babies Comparator: ECC Immediate clamping Mean clamping time 5.4 secs N = 19 babies Additional information Gestational subgroup: < 32‐34 weeks' gestation Resuscitation with cord intact: not available Access to NICU: yes Length of delay: 30‐45 secs Baby placed: no information assume level with uterus and placenta When uterotonic given; no information UCM: n/a Comparison 1 DCC with neonatal resuscitation after cord clamping vs ECC (subgroup by gestation) Subgroup 1: < 32‐34 weeks' gestation Comparison 2 DCC with neonatal resuscitation after cord clamping vs ECC (subgroup by type intervention) Subgroup 1: DCC at < 1 min with baby level with uterus and placenta
Outcomes	IVH, sepsis, anaemia, and hyperbilirubinaemia
Notes	Setting: Toronto, Canada Dates: not reported Trial funding source: not reported Declaration of interest: not reported Further information: Conference abstract only.
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	No information
Allocation concealment (selection bias)	Unclear risk	No information
Blinding of participants and personnel (performance bias) All outcomes	High risk	No information. Clinicians at birth likely to be unblinded.
Blinding of outcome assessment (detection bias) All outcomes	Unclear risk	No information
Incomplete outcome data (attrition bias) All outcomes	Low risk	No losses reported
Selective reporting (reporting bias)	Unclear risk	We did not assess trial protocol
Other bias	Unclear risk	Compliance: 1 protocol violation ‐ not told which group. No other information. Conference abstract only.