Table 2.
Prevalence and relative risk of SMM during the delivery hospitalization among individuals with stillbirth versus live birth deliveries in California, Michigan, Missouri, Pennsylvania, and South Carolina
| Characteristics | Cases (Cases per 10,000 deliveries) | Risk Ratio (95% CI) | ||||
|---|---|---|---|---|---|---|
| Stillbirth N=35,012 |
Live birth N=8,659,900 |
Unadjusted RR | Adjusted RRa | Adjusted RR including comorbidity indexb | Adjusted RR including obstetric factorsc | |
| SMM | 2768 (791) | 133415 (154) | 5.1 (4.9, 5.3) | 3.8 (3.7, 3.9) | 1.6 (1.5, 1.8) | 3.5 (3.3, 3.6) |
| Non-transfusion SMM | 1758 (502) | 58989 (68) | 7.4 (7.0, 7.7) | 5.1 (4.8, 5.3) | 2.0 (1.8, 2.3) | 4.5 (4.3, 4.7) |
a
Adjusted for: birth year, state, insurance, education, race/ethnicity, maternal age, and prenatal care adequacy.
b
Adjusted for: birth year, state, insurance, education, race/ethnicity, maternal age, prenatal care adequacy, and obstetric comorbidity index.
c
Adjusted for: birth year, state, insurance, education, race/ethnicity, maternal age, prenatal care adequacy, preexisting diabetes, preexisting hypertension, preeclampsia, gestational diabetes, and gestational hypertension.