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Table 4 Relative risk ratios (RRR) and 95% confidence interval for emergency 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 Emergency 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 16.0 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 15.9 79.1 0.98 (0.89–1.09) 1.05 (0.94–1.16) 1.00 (0.89–1.11) 0.98 (0.89–1.09) 1.02 (0.92–1.14) 0.99 (0.89–1.10) 1.06 (0.95–1.18) 0.89 (0.80–0.99)
Poland 2685 15.0 78.4 0.95 (0.85–1.05) 0.96 (0.86–1.07) 0.96 (0.86–1.07) 0.95 (0.85–1.06) 0.97 (0.87–1.08) 0.97 (0.87–1.08) 1.04 (0.93–1.16) 0.88 (0.79–0.99)
Turkey 1856 18.4 78.0 1.15 (1.02–1.30) 1.22 (1.08–1.38) 1.17 (1.04–1.32) 1.13 (1.00–1.27) 1.20 (1.06–1.35) 1.15 (1.02–1.30) 1.19 (1.05–1.35) 0.93 (0.82–1.05)
Iraq 1663 16.5 79.5 1.02 (0.89–1.16) 1.16 (1.02–1.31) 1.05 (0.92–1.20) 1.00 (0.88–1.14) 1.07 (0.94–1.22) 1.03 (0.90–1.17) 1.06 (0.93–1.22) 0.77 (0.67–0.88)
Germany 1500 15.1 79.5 0.93 (0.81–1.08) 0.86 (0.75–1.00) 0.95 (0.82–1.10) 0.94 (0.81–1.08) 0.96 (0.83–1.11) 0.95 (0.82–1.10) 0.97 (0.84–1.12) 0.94 (0.82–1.09)
Norway 1486 12.3 82.9 0.73 (0.62–0.85) 0.70 (0.59–0.81) 0.72 (0.62–0.84) 0.73 (0.63–0.85) 0.74 (0.64–0.87) 0.74 (0.63–0.86) 0.79 (0.67–0.92) 0.74 (0.63–0.87)
Sweden 1403 14.8 78.8 0.92 (0.79–1.07) 0.85 (0.73–0.99) 0.92 (0.80–1.07) 0.93 (0.80–1.08) 0.92 (0.79–1.07) 0.90 (0.77–1.05) 1.00 (0.86–1.16) 0.90 (0.77–1.05)
Romania 1346 15.8 77.9 1.01 (0.87–1.17) 1.02 (0.88–1.18) 1.05 (0.90–1.22) 1.01 (0.87–1.17) 1.07 (0.92–1.24) 1.02 (0.88–1.19) 1.11 (0.96–1.29) 0.86 (0.74–1.00)
China 1292 15.7 80.6 0.96 (0.83–1.12) 0.92 (0.79–1.07) 1.00 (0.86–1.17) 0.94 (0.81–1.10) 1.03 (0.89–1.20) 0.99 (0.85–1.15) 1.16 (0.99–1.35) 0.73 (0.63–0.86)
Philippines 1127 29.0 65.7 2.19 (1.92–2.49) 2.13 (1.87–2.42) 2.23 (1.95–2.54) 2.15 (1.89–2.45) 2.27 (1.99–2.58) 2.24 (1.96–2.56) 2.53 (2.21–2.89) 1.25 (1.10–1.44)
Thailand 1088 23.1 70.1 1.61 (1.40–1.86) 1.51 (1.31–1.75) 1.66 (1.43–1.92) 1.60 (1.38–1.84) 1.70 (1.47–1.96) 1.63 (1.41–1.89) 1.91 (1.65–2.21) 1.06 (0.92–1.23)
Pakistan 1070 17.0 79.2 1.06 (0.90–1.24) 1.11 (0.94–1.30) 1.07 (0.91–1.26) 1.02 (0.87–1.20) 1.08 (0.92–1.27) 1.01 (0.85–1.19) 1.08 (0.91–1.29) 0.73 (0.62–0.87)
Somalia 956 25.4 71.7 1.74 (1.50–2.01) 1.95 (1.68–2.26) 1.65 (1.42–1.91) 1.72 (1.49–2.00) 1.70 (1.47–1.97) 1.72 (1.48–1.99) 1.90 (1.63–2.21) 1.50 (1.29–1.75)
Vietnam 953 19.7 76.8 1.26 (1.07–1.47) 1.22 (1.04–1.44) 1.29 (1.10–1.52) 1.25 (1.06–1.46) 1.33 (1.13–1.56) 1.24 (1.05–1.46) 1.52 (1.29–1.79) 0.78 (0.66–0.92)
Lebanon 926 12.5 84.7 0.72 (0.59–0.88) 0.82 (0.67–1.00) 0.74 (0.61–0.90) 0.72 (0.59–0.88) 0.76 (0.62–0.92) 0.74 (0.61–0.90) 0.77 (0.63–0.94) 0.56 (0.46–0.68)
Iceland 910 15.3 82.2 0.91 (0.76–1.09) 0.94 (0.78–1.13) 0.92 (0.77–1.10) 0.92 (0.77–1.10) 0.91 (0.76–1.09) 0.89 (0.74–1.07) 0.93 (0.78–1.12) 0.90 (0.75–1.08)
Iran 906 22.7 67.3 1.66 (1.42–1.95) 1.56 (1.33–1.83) 1.73 (1.48–2.04) 1.65 (1.40–1.93) 1.75 (1.49–2.05) 1.71 (1.46–2.01) 1.75 (1.49–2.06) 1.31 (1.11–1.54)
Afghanistan 860 20.0 76.4 1.29 (1.09–1.53) 1.42 (1.20–1.68) 1.35 (1.14–1.60) 1.27 (1.07–1.51) 1.36 (1.15–1.61) 1.32 (1.11–1.56) 1.42 (1.19–1.69) 0.91 (0.76–1.08)
Morocco 472 18.6 77.8 1.17 (0.93–1.48) 1.11 (0.88–1.41) 1.19 (0.94–1.50) 1.12 (0.90–1.42) 1.23 (0.97–1.55) 1.22 (0.96–1.54) 1.14 (0.88–1.46) 0.95 (0.74–1.21)
  1. aStated as a percentage of the total number of deliveries
  2. bAll models adjusted for year of birth
  3. cGestational hypertensive disorders