Table 1. The influence of clinical factors on neonatal sedation (Infant ADR).

	(N = 5)	(N = 233)
	Infant ADR	Asymptomatic	P Value
No. days taking codeine	4.8±2.6	2.5±1.6	0.01
Total amount of codeine used (mg/kg)	5.1±2.4	3.2±2.5	0.08
No. times feeding per day	8.5 (7.0–9.0)	9.0 (3.0–13.0)	0.27
Baby GA (weeks)	38.6±1.1	39.1±1.4	0.44
Baby Birth Weight (g)	3392.4±584.4	3403.1±510.12	0.96
No. consecutive hours slept	3.5 (2.5–4.0)	2.5 (1.5–4.5)	0.19
Maternal ADR	0	8% (19/242)	0.67
Formula supplementation	20% (1/5)	17% (39/229)	0.41
Non-Caucasian	100% (5/5)	62% (143/230	0.10

Demographic characteristics of Mothers of sedated infants (Infant ADR) and those whose infants were did not report any changes in health status (asymptomatic). Statistical significance was set at P<0.05. Parametric values are presented as mean ± standard deviation and nonparametric values are presented as median (range).