Table 3 Risk of cause-specific maternal mortality associated with prepregnancy obesity.

From: Understanding maternal mortality in women with obesity and the role of care they receive: a national case-control study

Cause of deatha

Women who died (n = 364)%

Controls

(n = 14,681)%

Crude OR

(95% CI)

Adjusted ORb

(95% CI)

Obese

Non-obese

Obese

Non-obese

All-cause mortality

22.7

77.3

9.8

90.2

2.72 (2.10–3.54)

2.37 (1.81–3.10)

Cardiovascular

33.1

66.9

  

4.52 (2.35–8.73)

4.55 (2.33–8.87)

Thromboembolism

26.6

73.4

  

3.30 (1.35–8.06)

2.87 (1.18–6.97)

Hypertensive complication

24.8

75.2

  

3.04 (1.23–7.50)

2.86 (1.14–7.15)

Stroke

26.2

73.8

  

3.04 (1.14–8.11)

2.84 (1.06–7.69)

Amniotic fluid embolism

21.7

78.3

  

2.57 (1.19–5.52)

2.10 (0.97–4.57)

Haemorrhage

20.5

79.5

  

2.37 (1.12–5.02)

1.79 (0.83–3.86)

Infection

15.8

84.2

  

1.68 (0.48–5.96)

1.46 (0.40–5.28)

  1. OR odds ratio, 95% CI 95% confidence interval.
  2. aAssessed by the national expert committee, exclusive categorization.
  3. bLogistic regression models adjusted for country of birth, maternal age, parity and previous caesarean delivery; with multiple imputation for missing data.
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