Marchette 1991.

Methods	RCT Blinding of randomization ‐ can't tell Blinding of intervention ‐ can't tell Complete follow‐up ‐ can't tell Blinding of outcome measurement ‐ can't tell
Participants	121 male NB; Apgar =/> 6; normal delivery; 2 ‐ 9 days age
Interventions	taped music (n=20) intrauterine sounds (n=20) pacifier (n=20) music and pacifier (n=20) intrauterine sounds and pacifier (n=20) control ‐ no treatment (n=21)
Outcomes	HR, rhythm, BP; tcPO2; rate pressure product, BNAS; crying
Notes	‐ cases excluded if circumcision longer than 15 min or if bleeding ‐ Gomco clamp
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment?	Unclear risk	B ‐ Unclear