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. 2004 Jul 19;2004(3):CD004217. doi: 10.1002/14651858.CD004217.pub2

Howard 1994.

Methods RCT 
 Blinding of randomization ‐ yes 
 Blinding of intervention ‐ yes 
 Complete follow‐up ‐ yes 
 Blinding of outcome measurement ‐ yes
Participants 44 male NB, healthy, AGA, FT, Apgars > 7, >/= 24 h age
Interventions acetaminophen 15 mg/kg/dose (n= 23) 
 placebo (n= 21) 
 given 2 hr prior and q 6H X 24 hr following
Outcomes HR; RR; cry time; post‐operative comfort score; feeding behavior pre/post
Notes ‐ infants fasted 2 ‐ 3 h prior to circumcision 
 ‐ all had pacifiers 
 ‐ procedure standardized 
 ‐ single operator performed all circumcisions 
 ‐ Gomco clamp 
 ‐ no adverse effects reported
Risk of bias
Bias Authors' judgement Support for judgement
Allocation concealment? Low risk A ‐ Adequate