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. 2015 Feb 12;2015(2):CD000184. doi: 10.1002/14651858.CD000184.pub4

Comparison 6. Regional analgesia (with or without tocolysis) vs no intervention of regional analgesia (with or without tocolysis).

Outcome or subgroup title No. of studies No. of participants Statistical method Effect size
1 Cephalic presentation at birth (primary) 3   Risk Ratio (M‐H, Random, 95% CI) Subtotals only
1.1 Regional analgesia alone vs no intervention 0 0 Risk Ratio (M‐H, Random, 95% CI) 0.0 [0.0, 0.0]
1.2 Regional analgesia + tocolysis vs tocolysis 3 279 Risk Ratio (M‐H, Random, 95% CI) 1.44 [0.78, 2.66]
2 Failure to achieve cephalic vaginal birth (composite outcome: caesarean section + vaginal breech birth) 0 0 Risk Ratio (M‐H, Fixed, 95% CI) 0.0 [0.0, 0.0]
3 Caesarean section (primary) 3   Risk Ratio (M‐H, Random, 95% CI) Subtotals only
3.1 Regional analgesia alone vs no intervention 0 0 Risk Ratio (M‐H, Random, 95% CI) 0.0 [0.0, 0.0]
3.2 Regional analgesia + tocolysis vs tocolysis 3 279 Risk Ratio (M‐H, Random, 95% CI) 0.74 [0.40, 1.37]
4 Fetal bradycardia (primary) 2   Risk Ratio (M‐H, Random, 95% CI) Subtotals only
4.1 Regional analgesia alone vs no intervention 0 0 Risk Ratio (M‐H, Random, 95% CI) 0.0 [0.0, 0.0]
4.2 Regional analgesia + tocolysis vs tocolysis 2 210 Risk Ratio (M‐H, Random, 95% CI) 1.48 [0.62, 3.57]
5 Failed external cephalic version 6   Risk Ratio (M‐H, Random, 95% CI) Subtotals only
5.1 Regional analgesia alone vs no intervention 1 141 Risk Ratio (M‐H, Random, 95% CI) 0.89 [0.70, 1.14]
5.2 Regional analgesia + tocolysis vs tocolysis 5 409 Risk Ratio (M‐H, Random, 95% CI) 0.61 [0.43, 0.86]
6 Difficult external cephalic version 0   Risk Ratio (M‐H, Random, 95% CI) Subtotals only
6.1 Regional analgesia alone vs no intervention 0 0 Risk Ratio (M‐H, Random, 95% CI) 0.0 [0.0, 0.0]
6.2 Regional analgesia + tocolysis vs tocolysis 0 0 Risk Ratio (M‐H, Random, 95% CI) 0.0 [0.0, 0.0]
7 Maternal palpitations 0   Risk Ratio (M‐H, Random, 95% CI) Subtotals only
7.1 Regional analgesia alone vs no intervention 0 0 Risk Ratio (M‐H, Random, 95% CI) 0.0 [0.0, 0.0]
7.2 Regional analgesia + tocolysis vs tocolysis 0 0 Risk Ratio (M‐H, Random, 95% CI) 0.0 [0.0, 0.0]
8 Maternal headaches 0   Risk Ratio (M‐H, Random, 95% CI) Subtotals only
8.1 Regional analgesia alone vs no intervention 0 0 Risk Ratio (M‐H, Random, 95% CI) 0.0 [0.0, 0.0]
8.2 Regional analgesia + tocolysis vs tocolysis 0 0 Risk Ratio (M‐H, Random, 95% CI) 0.0 [0.0, 0.0]
9 Maternal hypotension 3   Risk Ratio (M‐H, Random, 95% CI) Subtotals only
9.1 Regional analgesia alone vs no intervention 0 0 Risk Ratio (M‐H, Random, 95% CI) 0.0 [0.0, 0.0]
9.2 Regional analgesia + tocolysis vs tocolysis 3 280 Risk Ratio (M‐H, Random, 95% CI) 11.58 [1.53, 87.50]
10 Operative vaginal birth 0   Risk Ratio (M‐H, Random, 95% CI) Subtotals only
10.1 Regional analgesia alone vs no intervention 0 0 Risk Ratio (M‐H, Random, 95% CI) 0.0 [0.0, 0.0]
10.2 Regional analgesia + tocolysis vs tocolysis 0 0 Risk Ratio (M‐H, Random, 95% CI) 0.0 [0.0, 0.0]
11 Maternal mortality 0   Risk Ratio (M‐H, Random, 95% CI) Subtotals only
11.1 Regional analgesia alone vs no intervention 0 0 Risk Ratio (M‐H, Random, 95% CI) 0.0 [0.0, 0.0]
11.2 Regional analgesia + tocolysis vs tocolysis 0 0 Risk Ratio (M‐H, Random, 95% CI) 0.0 [0.0, 0.0]
12 Maternal morbidity 0   Risk Ratio (M‐H, Random, 95% CI) Subtotals only
12.1 Regional analgesia alone vs no intervention 0 0 Risk Ratio (M‐H, Random, 95% CI) 0.0 [0.0, 0.0]
12.2 Regional analgesia + tocolysis vs tocolysis 0 0 Risk Ratio (M‐H, Random, 95% CI) 0.0 [0.0, 0.0]
13 Perinatal morbidity 0   Risk Ratio (M‐H, Random, 95% CI) Subtotals only
13.1 Regional analgesia alone vs no intervention 0 0 Risk Ratio (M‐H, Random, 95% CI) 0.0 [0.0, 0.0]
13.2 Regional analgesia + tocolysis vs tocolysis 0 0 Risk Ratio (M‐H, Random, 95% CI) 0.0 [0.0, 0.0]
14 Perinatal mortality 0   Risk Ratio (M‐H, Random, 95% CI) Subtotals only
14.1 Regional analgesia alone vs no intervention 0 0 Risk Ratio (M‐H, Random, 95% CI) 0.0 [0.0, 0.0]
14.2 Regional analgesia + tocolysis vs tocolysis 0 0 Risk Ratio (M‐H, Random, 95% CI) 0.0 [0.0, 0.0]
15 Placental abruption (not prespecified) 1   Risk Ratio (M‐H, Random, 95% CI) Subtotals only
15.1 Regional analgesia alone vs no intervention 0 0 Risk Ratio (M‐H, Random, 95% CI) 0.0 [0.0, 0.0]
15.2 Regional analgesia + tocolysis vs tocolysis 1 102 Risk Ratio (M‐H, Random, 95% CI) 0.35 [0.01, 8.31]
16 Maternal discomfort (not prespecified) 2   Risk Ratio (M‐H, Random, 95% CI) Subtotals only
16.1 Regional analgesia alone vs no intervention 0 0 Risk Ratio (M‐H, Random, 95% CI) 0.0 [0.0, 0.0]
16.2 Regional analgesia + tocolysis vs tocolysis 2 171 Risk Ratio (M‐H, Random, 95% CI) 0.19 [0.03, 1.04]