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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
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