21 / 105
C
esarean
on
request
R
ev
A
ssoc
M
ed
B
ras
2015; 61(4):296-307
305
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
0
1046 182 38021 17.8% -0.00 [-0.01,
-0.00]
2013
-0.05
0.025 0.05
0
Favours [CS]
Favours [VD]
Crowther,
2012
38
5877 252 13774 72.1% -0.01 [-0.01,
-0.01]
2012
Dahlgren,
2009
0
1098 1
1225 10.1% -0.00 [-0.00,
-0.00]
2009
Total
(95% CI)
8021
53020 100% -0.01 [-0.01,
-0.01]
Total
events
38
435
Heterogeneity: Chi
2
= 92.86, df = 2 (p < 0.00001): I
2
= 98%
Test for overall effect: Z = 8.37 (p < 0.00001)
FIGURE 3.1
Decrease in Apgar score.
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
0
5877 838 13774 68.9% -0.06 [-0.06,
-0.06]
2013
-0.2
-0.1
0.1
0.2
0
Favours [CS]
Favours [VD]
Crowther,
2012
109 1098 367 1225 9.7% -0.20 [-0.23,
-0.17]
2012
Larsson,
2011
25
247 45
294 2.2% -0.05 [-0.11,
0.00]
2011
Dahlgren,
2009
0
1046 5580 38021 17% -0.15 [-0.15,
-0.14]
2009
Schindl,
2003
0
147 93
903 2.1% -0.10 [-0.12,
-0.08]
2003
Total
(95% CI)
8415
54217 100% -0.09 [-0.09,
-0.09]
Total
events
134
6923
Heterogeneity: Chi
2
– 1120.43, df = 4 (p < 0.00001): I
2
= 100%
Test for overall effect: Z = 40.41 (p < 0.00001)
FIGURE 2
Emergency C-section.