Comparison 9. Pentazocine + promazine versus pethidine + promazine.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Low Apgar score (≤ 7) at 1 and 5 minutes (with promazine)	1		Risk Ratio (M-H, Fixed, 95% CI)	Subtotals only
1.1 Low score at 1 minute	1	66	Risk Ratio (M-H, Fixed, 95% CI)	1.13 [0.07, 17.30]
1.2 Low score at 5 minutes	1	66	Risk Ratio (M-H, Fixed, 95% CI)	0.38 [0.02, 8.88]
2 Naloxone administration (neonatal)	1	85	Risk Ratio (M-H, Fixed, 95% CI)	0.49 [0.09, 2.53]
2.1 With promazine	1	85	Risk Ratio (M-H, Fixed, 95% CI)	0.49 [0.09, 2.53]