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2015; 61(4):296-307
CDMR
Vaginal delivery
Risk difference Risk difference
Study or
subgroup
Events Total Events Total
Weight M-H, fixed,
95% CI
Year M-H, fixed, 95% CI
Crowther,
2012
18
1098 13
1225 30.8% 0.01 [-0.00,
0.02]
2013
-0.05
0.05
0
Favours [CS]
Favours [VD]
0.025
-0.025
Larsson,
2011
0
247 1
294 7.1% -0.00 [-0.01,
0.01]
2011
Wang,
2010
31
301 32
301 8% -0.00 [-0.05,
0.05]
2010
Dahlgren,
2009
10
1046 189 38021 54.1% 0.00 [-0.00,
0.01]
2009
Total
(95% CI)
2692
39841 100% 0.00 [-0.00,
0.01]
Total
events
59
235
Heterogeneity: ChI
2
– 2.36, df = 3 (p = 0.50): I
2
= 0%
Test for overall effect: Z = 1.25 (p = 0.21)
FIGURE 1.3
Wound complications.
CDMR
Vaginal delivery
Risk difference Risk difference
Study or
subgroup
Events Total Events Total
Weight M-H, fixed,
95% CI
Year M-H, fixed, 95% CI
Karlström,
2013
73
5877 32
13774 16.2% 0.01 [0.01,
0.01]
2013
-0.05
0.05
0
Favours [CS]
Favours [VD]
0.025
Liu, 2012 2317 22462 31211 409242 83.8% 0.03 [0.02,
0.03]
2012
Total
(95% CI)
28339
423016 100% 0.02 [0.02,
0.03]
Total
events
2390
31243
Heterogeneity: Chi
2
= 89.46, df = 1 (p < 0.00001): I
2
= 99%
Test for overall effect: Z = 13.79 (p < 0.00001)
FIGURE 1.4
Breastfeeding complications.