Table 3.
Linear and logistic regression of select pregnancy outcomes by number of medical comorbidities (chronic hypertension, pregestational diabetes, systemic lupus erythematosus, and chronic kidney disease)
| No comorbidities (n = 167) | 1 comorbidity (n = 151) | ≥2 comorbidities (n = 19) | |
|---|---|---|---|
| Pregnancy outcomes | |||
| % of EM achieveda | Referent | 5.3 (−2.1 to 12.9) | −2.9 (−18.0 to 12.2) |
| EGA at delivery (wk)a | Referent | 0.7 (−0.003 to 1.4) | −0.5 (−1.9 to 0.9) |
| Duration of EM (d)a | Referent | 4.0 (−1.5 to 9.5) | 1.1 (−10.0 to 12.2) |
| Maternal compositeb | Referent | 0.5 (0.3–0.8) | 3.0 (1.1–8.2) |
| Cesarean deliveryb | Referent | 1.8 (1.1–3.0) | 7.1 (1.5–32.4) |
| Length of maternal postpartum hospitalization (d)a | Referent | 0.2 (−0.2 to 0.6) | 2.2 (1.3–3.0) |
| Neonatal compositeb | Referent | 0.7 (0.4–1.2) | 0.7 (0.2–1.8) |
| Neonatal birth weighta | Referent | 169 (39–300) | −124 (−384 to 135) |
Abbreviations: EGA, estimated gestational age; EM, expectant management.
Note: Referent = no comorbidities.
a
Beta coefficients with 95% confidence interval (CI), adjusted for maternal age, BMI, and race.
b
Adjusted odds ratios with 95% CI, adjusted for maternal age, BMI, and race.