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Table 2 Occurrence of maternal end-organ injury or death between 20 weeks’ gestation and up to 42 days after birth, and the ranking of the most prevalent morbidity indicators

From: Development and internal validation of a model predicting severe maternal morbidity using pre-conception and early pregnancy variables: a population-based study in Ontario, Canada

Outcome

Number of outcome events

Rate per 1000

Proportion of all outcomes (%)a

Maternal end-organ injury or death between 20 weeks’ gestation and 42 days after birth

1969

3.1

100.0

Maternal end-organ injury, without death, between 20 weeks’ gestation and 42 days after birth

1907

3.0

96.9

Death between 20 weeks’ gestation and 42 days after birth

62

0.1

3.1

Death without end-organ injury

19

0.03

1.0

Combined maternal end-organ injury and death between 20 weeks’ gestation and 42 days after birth

43

0.07

2.2

Acute heart failure

800

1.3

40.6

Assisted ventilation through endotracheal tube

575

0.9

29.2

Acute renal failure

237

0.4

12.0

Shock

198

0.3

10.1

Adult respiratory distress syndrome or respiratory failure

157

0.3

8.0

Puerperal cerebrovascular disorders

134

0.2

6.8

Acute liver disease

85

0.1

4.3

Disseminated intravascular coagulation

54

0.09

2.7

Acute psychosis/delirium

49

0.08

2.5

Dialysis

37

0.06

1.9

Sepsis

33

0.05

1.7

Acute myocardial infarction

32

0.05

1.6

Left ventricular failure

32

0.05

1.6

Status epilepticus

23

0.04

1.2

Status asthmaticus

22

0.03

1.1

Cerebral oedema or coma

20

0.03

1.0

Assisted ventilation through tracheostomy

8

0.01

0.4

  1. aCategories not mutually exclusive