Table 2. Comparison of labor pain score at pre- and post-intervention between pregnant women receiving acetaminophen and pethidine.

Labor pain score	Acetaminophen group (n = 67)	Pethidine group (n = 67)	p-value
Before injection	1.4 ± 9.2	0.7 ± 9.5	0.109
15 minutes	8.3 ± 1.8	8.3 ± 1.6	0.880
60 minutes	8.2 ± 1.9	8.0 ± 2.0	0.599
120 minutes	8.5 ± 2.0	8.6 ± 2.0	0.801
180 minutes	8.6 ± 2.2	9.2 ± 1.4	0.251
240 minutes	8.6 ± 2.2	9.3 ± 1.4	0.272

Data were given as mean±standard deviation.