Comparison 6. Antispasmodics versus control: active versus expectant management of labour.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Duration of first stage of labour (min)	13	1995	Mean Difference (IV, Random, 95% CI)	‐74.38 [‐98.80, ‐49.96]
1.1 Active management	10	1377	Mean Difference (IV, Random, 95% CI)	‐60.44 [‐88.41, ‐32.47]
1.2 Expectant management	3	618	Mean Difference (IV, Random, 95% CI)	‐108.81 [‐144.05, ‐73.56]
2 Duration of second stage of labour (min)	10	1297	Mean Difference (IV, Random, 95% CI)	‐2.68 [‐5.98, 0.63]
2.1 Active management	9	1079	Mean Difference (IV, Random, 95% CI)	‐3.12 [‐7.34, 1.10]
2.2 Expectant management	1	218	Mean Difference (IV, Random, 95% CI)	‐1.30 [‐4.79, 2.19]
3 Duration of third stage of labour (min)	5	765	Mean Difference (IV, Random, 95% CI)	‐0.06 [‐0.52, 0.40]
3.1 Active management	4	547	Mean Difference (IV, Random, 95% CI)	‐0.17 [‐0.78, 0.44]
3.2 Expectant management	1	218	Mean Difference (IV, Random, 95% CI)	0.19 [‐0.53, 0.92]
4 Total duration of labour (min)	7	797	Mean Difference (IV, Random, 95% CI)	‐85.51 [‐121.81, ‐49.20]
4.1 Active management	5	547	Mean Difference (IV, Random, 95% CI)	‐49.69 [‐65.17, ‐34.21]
4.2 Expectant management	2	250	Mean Difference (IV, Random, 95% CI)	‐172.91 [‐238.73, ‐107.09]
5 Rate of cervical dilatation (cm/h)	6	820	Mean Difference (IV, Random, 95% CI)	0.61 [0.34, 0.88]
5.1 Active management	5	670	Mean Difference (IV, Random, 95% CI)	0.47 [0.10, 0.83]
5.2 Expectant management	1	150	Mean Difference (IV, Random, 95% CI)	0.94 [0.77, 1.12]