Paracetamol use was greater for the liberal vs. restricted group for reported [ Hodges-Lehmann estimator of difference 0.94 mg/kg/day ( 95 % CI 0.2-3 .52 ) , P = 0.02 ] and measured use [ Hodges-Lehmann estimator of difference 2.11 mg/kg/day ( 95 % CI 0.9-4 .18 ) , P = 0.004 ] .