Table 3.

Logistic regression analysis with different outcome variables: primary outcome, effective sedation and hypotension

	Primary outcome (n=89)			Effective sedation (n=83)			Hypotension (n=82)
	OR	95% CI	P value	OR	95% CI	P value	OR	95% CI	P value
Gestational age (weeks)	0.94	0.77 to 1.15	0.54	1.00	0.80 to 1.23	0.98	1.09	0.94 to 1.26	0.26
Birth weight <10th percentile (yes/no)	0.85	0.22 to 3.34	0.82	1.07	0.27 to 4.27	0.93	1.55	0.52 to 4.25	0.47
Male gender (yes/no)	1.72	0.46 to 6.40	0.42	2.67	0.76 to 9.36	0.13	0.94	0.36 to 2.45	0.90
Postnatal age (in hours)	1.00	0.99 to 1.00	0.69	1.00	0.99 to 1.00	0.65	1.00	0.99 to 1.00	0.45
Starting dose of propofol (mg/kg)	4.50	0.92 to 22.11	0.06	57.04	7.58 to 429.49	<0.001	1.09	0.35 to 3.39	0.88
Cumulative dose of propofol (mg/kg)							0.74	0.48 to 1.14	0.18

Corrected by Firth’s method to reduce bias because of relatively small sample size.