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Table 2 The incidence of severe maternal morbidity using the four indicators

From: Comparison of global indicators for severe maternal morbidity among South Korean women who delivered from 2003 to 2018: a population-based retrospective cohort study

 

US-CDC’s SMM

Gold standard guideline for SMMa

Zwart et al.’s SMM

EURONET-SAMM

(n = 151,533)

(n = 200,090)

(n = 20,084)

(n = 87,452)

N

%

N

%

N

%

N

%

Acute myocardial infarction

645

0.4

      

Aneurysm

66

0

      

Acute renal failure

2310

1.5

      

Adult respiratory distress syndrome

610

0.4

      

Amniotic fluid embolism

233

0.2

      

Cardiac arrest/ ventricular fibrillation

293

0.2

      

Conversion of cardiac rhythm

744

0.5

      

Disseminated intravascular coagulation

15,131

10

      

Eclampsia

4912

3.2

      

Heart failure/arrest during procedure or surgery

5

0

      

Puerperal cerebrovascular disorders

1330

0.9

      

Pulmonary edema/ acute heart failure

5283

3.5

      

Severe anesthesia complications

140

0.1

      

Sepsis

12,016

7.9

      

Shock

7798

5.2

      

Sickle cell anemia with crisis

5

0

      

Air and thrombotic embolism

1821

1.2

      

Blood product transfusion

117,076

77.3

      

Hysterectomy

7251

4.8

      

Temporary tracheostomy

84

0.1

      

Ventilation

3233

2.1

      

US-CDC’s SMM

  

151,533

75.7

    

Prolonged postpartum length of stay*

  

    

Maternal intensive care unit admission

  

10,188

5.1

    

Administration of blood products (≥ 4 units)

  

636

0.3

    

30 days readmission

  

50,265

25.1

    

ICU admission

    

10,188

50.7

  

Uterine rupture

    

637

3.2

  

Eclampsia/HELLP syndrome

    

5406

26.9

  

Major obstetric hemorrhage (≥ 4 units of blood cells; embolization or hysterectomy for MOH)

    

6837

34.0

  

Miscellaneous (opinion of the treating obstetrician) *

    

  

Eclampsia

      

7302

8.4

Septicemia during pregnancy or labor

      

15,672

17.9

Hysterectomy in the context of pregnancy

      

7251

8.3

Hysterectomy associated with obstetric hemorrhage

      

5839

6.7

Red blood cell transfusion associated with OH

      

63,213

72.3

  1. *Excluded in the indicators
  2. EURONET-SAMM European Network on Severe Acute Maternal Morbidity, GSG gold standard guidelines (American College of Obstetricians and Gynecologists) for SMM, HELLP hemolysis, elevated liver enzymes and low platelet syndrome, ICU intensive care unit, MOH major obstetric hemorrhage, OH obstetric hemorrhage, SMM severe maternal morbidity, US-CDC United States Centers for Disease Control and Prevention