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. Author manuscript; available in PMC: 2021 Sep 1.
Published in final edited form as: Am J Obstet Gynecol. 2020 Feb 27;223(3):404.e1–404.e20. doi: 10.1016/j.ajog.2020.02.027

Table 2a.

Incidence (%) of Severe Maternal Morbidity by Fertility Group

Infertile Fertile
Treatment Diagnosis Testing
N, deliveries 7,113 11,548 997 525,695
Severe maternal morbidity indicator
Any severe maternal morbidity indicator (%) 7.00 6.40 5.48 4.31
Acute myocardial infarction * * * 0.01
Acute renal failure * 0.10 * 0.08
Acute respiratory distress 0.34 0.22 * 0.14
Amniotic fluid embolism * * * 0.02
Aneurysm * * * 0.01
Cardiac arrest or ventricular fibrillation * * * 0.01
Disseminated intravascular coagulation 1.19 0.75 * 0.44
Eclampsia 0.41 0.36 * 0.22
Heart failure during procedure or surgery 0.35 0.40 * 0.17
Internal injuries of the thorax, abdomen, or pelvis 0.18 0.16 * 0.09
Intracranial injuries * * * 0.02
Puerperal cardiovascular disorders 0.61 0.75 * 0.40
Pulmonary edema 0.21 0.22 * 0.08
Severe anesthesia complications * * * 0.07
Sepsis 0.17 0.11 * 0.14
Shock 0.20 0.10 * 0.07
Sickle cell anemia with crisis * * * 0.01
Thrombotic embolism 0.28 0.31 * 0.13
Blood transfusion 1.51 1.05 1.11 0.65
Cardiology monitoring 2.90 3.07 2.13 2.24
Conversion of cardiac rhythm * * * 0.01
Hysterectomy 0.30 0.16 * 0.09
Operations on the heart and pericardium 0.23 0.15 * 0.10
Temporary tracheostomy * * * **
Ventilation 0.30 0.32 * 0.22
Intubation * * * 0.04
*

<11 cases, true value not reported per data usage agreement