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Table 5 Relative risk ratios (RRR) and 95% confidence intervals for planned caesarean section (CS) versus vaginal delivery among primiparous women by maternal country of birth: Denmark 2004–2015

From: Ethnic differences in the risk of caesarean section: a Danish population-based register study 2004–2015

Maternal country of birth Total number of deliveries n Planned CS (%)a Vaginal delivery (%)a Adjusted for year of birthb Adjusted for maternal ageb Adjusted for gestational ageb Adjusted for diabetesb Adjusted for GHDbc Adjusted for birthweightb Adjusted for BMIb Adjusted for heightb
Denmark 272,888 5.4 78.5 1.00 (Ref.) 1.00 (Ref.) 1.00 (Ref.) 1.00 (Ref.) 1.00 (Ref.) 1.00 (Ref.) 1.00 (Ref.) 1.00 (Ref.)
Ex-Yugoslavia 2699 5.1 79.1 0.93 (0.78–1.11) 1.02 (0.86–1.22) 0.92 (0.76–1.10) 0.93 (0.78–1.10) 0.93 (0.78–1.11) 0.93 (0.78–1.11) 0.95 (0.80–1.14) 0.89 (0.75–1.07)
Poland 2685 6.6 78.4 1.22 (1.05–1.43) 1.25 (1.07–1.46) 1.22 (1.05–1.43) 1.23 (1.05–1.43) 1.23 (1.05–1.43) 1.23 (1.05–1.44) 1.26 (1.07–1.47) 1.20 (1.02–1.40)
Turkey 1856 3.6 78.0 0.66 (0.52–0.85) 0.72 (0.56–0.92) 0.66 (0.51–0.84) 0.64 (0.50–0.82) 0.66 (0.52–0.85) 0.62 (0.48–0.80) 0.74 (0.58–0.95) 0.68 (0.53–0.87)
Iraq 1663 4.0 79.5 0.72 (0.57–0.93) 0.88 (0.68–1.13) 0.72 (0.56–0.92) 0.71 (0.55–0.91) 0.73 (0.57–0.93) 0.74 (0.58–0.94) 0.76 (0.59–0.98) 0.68 (0.53–0.87)
Germany 1500 5.5 79.5 1.00 (0.80–1.25) 0.88 (0.70–1.10) 1.00 (0.80–1.25) 1.00 (0.80–1.25) 1.00 (0.80–1.25) 1.01 (0.80–1.26) 1.02 (0.81–1.28) 1.00 (0.80–1.26)
Norway 1486 4.8 82.9 0.83 (0.66–1.06) 0.78 (0.61–0.99) 0.84 (0.66–1.07) 0.84 (0.66–1.07) 0.84 (0.66–1.06) 0.84 (0.66–1.07) 0.85 (0.67–1.09) 0.83 (0.65–1.06)
Sweden 1403 6.4 78.8 1.18 (0.95–1.46) 1.04 (0.84–1.29) 1.19 (0.96–1.47) 1.20 (0.97–1.49) 1.18 (0.95–1.46) 1.19 (0.96–1.48) 1.22 (0.98–1.52) 1.16 (0.93–1.44)
Romania 1346 6.3 77.9 1.18 (0.95–1.48) 1.20 (0.96–1.50) 1.17 (0.94–1.46) 1.18 (0.95–1.48) 1.19 (0.95–1.48) 1.20 (0.96–1.50) 1.25 (1.00–1.56) 1.15 (0.92–1.44)
China 1292 3.7 80.6 0.67 (0.50–0.90) 0.63 (0.47–0.84) 0.66 (0.50–0.89) 0.65 (0.48–0.86) 0.67 (0.51–0.90) 0.68 (0.51–0.91) 0.66 (0.49–0.90) 0.57 (0.42–0.77)
Philippines 1127 5.3 65.7 1.18 (0.91–1.53) 1.13 (0.87–1.48) 1.16 (0.89–1.51) 1.15 (0.88–1.49) 1.18 (0.91–1.54) 1.20 (0.92–1.56) 1.23 (0.94–1.61) 0.98 (0.75–1.29)
Thailand 1088 6.8 70.1 1.40 (1.11–1.78) 1.26 (0.99–1.60) 1.37 (1.08–1.74) 1.38 (1.09–1.76) 1.41 (1.11–1.79) 1.41 (1.11–1.79) 1.54 (1.21–1.97) 1.28 (1.00–1.63)
Pakistan 1070 3.8 79.2 0.70 (0.51–0.96) 0.76 (0.56–1.04) 0.69 (0.51–0.95) 0.67 (0.49–0.91) 0.70 (0.51–0.96) 0.71 (0.52–0.97) 0.68 (0.49–0.96) 0.62 (0.44–0.86)
Somalia 956 2.9 71.7 0.59 (0.41–0.86) 0.70 (0.48–1.02) 0.62 (0.43–0.91) 0.58 (0.40–0.85) 0.60 (0.40–0.86) 0.60 (0.41–0.87) 0.65 (0.44–0.95) 0.60 (0.41–0.87)
Vietnam 953 3.5 76.8 0.65 (0.46–0.92) 0.63 (0.44–0.89) 0.63 (0.45–0.90) 0.64 (0.45–0.91) 0.65 (0.46–0.93) 0.63 (0.44–0.90) 0.72 (0.51–1.02) 0.58 (0.41–0.82)
Lebanon 926 2.8 84.7 0.48 (0.32–0.71) 0.58 (0.39–0.86) 0.47 (0.32–0.70) 0.48 (0.32–0.71) 0.48 (0.33–0.71) 0.49 (0.33–0.73) 0.50 (0.34–0.75) 0.45 (0.30–0.67)
Iceland 910 2.5 82.2 0.44 (0.29–0.67) 0.47 (0.31–0.72) 0.44 (0.29–0.67) 0.45 (0.30–0.68) 0.44 (0.29–0.67) 0.44 (0.29–0.67) 0.44 (0.29–0.67) 0.43 (0.28–0.66)
Iran 906 9.9 67.3 2.14 (1.71–2.67) 1.94 (1.55–2.40) 2.11 (1.69–2.64) 2.11 (1.69–2.63) 2.15 (1.72–2.68) 2.17 (1.74–2.71) 2.18 (1.74–2.74) 1.99 (1.59–2.50)
Afghanistan 860 3.6 76.4 0.68 (0.48–0.98) 0.79 (0.55–1.14) 0.68 (0.47–0.97) 0.67 (0.47–0.96) 0.69 (0.48–0.99) 0.70 (0.49–1.01) 0.69 (0.47–1.01) 0.59 (0.40–0.86)
Morocco 472 3.6 77.8 0.67 (0.41–1.09) 0.61 (0.37–1.00) 0.69 (0.42–1.12) 0.63 (0.39–1.02) 0.68 (0.41–1.10) 0.69 (0.42–1.12) 0.70 (0.42–1.16) 0.65 (0.39–1.07)
  1. aStated as a percentage of the total number of deliveries
  2. bAll models adjusted for year of birth
  3. cGestational hypertensive disorders
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