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TABLE 4
Maternal complications.
C-section without medical indication n
Vaginal delivery n
p
Average gestational age (SD)
Karlström 2013 38.40 (±0.73)
5877
39.81 (±1.17)
12936
<0,0000001
Crowther 2012 38.8 (±0.7)
1098
40 (±1.1)
1225
<0,0000001
Liu 2012
40.2 (±1.0)
22462
40.1 (±1.0)
409242
<0.0000001
Larsson 2011
38
247
40
294
-
Dahlgren 2009 38.56 (±0.91)
1046
39.29 (±1.11)
38021
<0,0000001
C-section without indication
n
RA
PC
Vaginal delivery n
RA
PV
RRA(-)
ARA(+)
CI
Maternal death
Crowther 2012 0
1098 0.0 0
1225 0.0
0.0
-
Souza 2010
2
2685 0.07% 230
212847 0.11% -0.03% -0.14, 0.07
Dahlgren 2009 0
1046 0.0 0
38021 0.0
0.0
-
Bleeding complications (%)
Karlström 2013 579 (9.9)
5877 9.85% 935 (6.8)
13774 6.79% 3.06%
2.19, 3.93
Crowther 2012 9 (0.8)
1098 0.82% 29 (2.4)
1225 2.37% -1.55%
-2.55, -0.54
Larsson 2011
25 (10)
247 10.12% 41 (14)
294 13.95% -3.82% -9.28, 1.64
Souza 2010
27 (1.0)
2685 1.01% 3613 (1.4)
256518 1.41% -0.40%
-0.78, -0.02
Wang 2010
12 (4.0)
301 3.99% 2 (0.6)
301
0.66% 3.32%
0.93, 5.71
Dahlgren 2009 3 (0.29)
1046 0.29% 123 (0.32)
38021 0.32% -0.04% -0.37, 0.29
Schindl 2003
0 (0.0)
147 0.0 17 (1.8)
903 1.88% -1.88%
-2.77, -0.99
Infectious complications (%)
Karlström 2013 148 (2.5)
5877 2.52% 155 (1.1)
13774 1.12% 1.39%
0.95, 1.83
Larsson 2011
8
247 3.24% 8
294
2.72% 0.52% -2.37, 3.40
Wang 2010
7 (2.3)
301 2.33% 3 (1.0)
301
0.99% 1.33% -0.71, 3.37
Dahlgren 2009 1 (0.1)
1046 0.10% 104 (0.27)
38021 0.27% -0.18% -0.37, 0.02
Schindl 2003
0 (0.0)
147 0.0 1 (0.1)
903
0.11% -0.11% -0.33, 0.11
Wound complications (%)
Crowther 2012 18 (1.6)
1098 1.64% 13 (1.1)
1225 1.06% 0.58% -0.37, 1.53
Larsson 2011
0 (0.0)
247 0.0 1 (0.3)
294
0.34% -0.34% -1.01, 0.32
Wang 2010
31
301 10.3% 32
301 10.6% -0.33% -5.22, 4.56
Dahlgren 2009 10 (0.96)
1046 0.96% 189 (0.5)
38021 0.50% 0.46% -0.13, 1.05
Breastfeeding complications (%)
Karlström 2013 73 (1.2)
5877 1.24% 32 (0.2)
13774 0.23% 1.01%
0.71, 1.30
Liu 2012
2317 (10.3)
22462 10.32% 31211 (7.6)
409242 7.63% 1.35%
2.28, 3.09
P values < 0.05 and confidence intervals that exclude null values are in bold.
TABLE 5
Emergency C-section.
C-section without indication n
RA
PC
Vaginal delivery n
RA
PV
RRA(-)
ARA(+)
CI
Karlström 2013 0
5877 0.0
838
13774 6.08% -6.08%
-6.48, -5.68
Crowther 2012 109 (9.9)
1098 9.93% 367 (30)
1225 29.96% -20.0%
-23.15, -16.92
Larsson 2011 25 (10)
247 10.12% 45 (15.4)
294
15.31% -5.18% -10.76, 0.39
Dahlgren 2009 0 (0.0)
1046 0.0
5580 (14.7)
38021 14.68% -14.7%
-15.03, -14.32
Schindl 2003 0 (0.0)
147 0.0
93 (10.3)
903
10.3% -10.3% -12.28, -8.32
P values < 0.05 and confidence intervals that exclude null values are in bold.