Table 2.
Maternal and Neonatal Outcomes of those with Planned Delivery versus Expectant Management
| Outcome | 37w0d-39w6d (n=1417) | 38w0d-39w6d (n=961) | 39w0d-39w6d (n=460) | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Planned Deliverya (n=165) | Expectant Management (n=1252) | baOR (95% CI) | Planned Deliveryc (n=160) | Expectant Management (n=801) | baOR (95% CI) | Planned Deliveryd (n=293) | Expectant Management (n=167) | baOR (95% CI) | |
| Maternal primary composite outcome and components of the outcome, n(%) | |||||||||
| Primary composite maternal outcome | 20 (12.1) | 180 (14.4) | 0.83 (0.50–1.36) | 14 (8.8) | 99 (12.4) | 0.65 (0.36–1.18) | 32 (10.9) | 17 (10.2) | 1.02 (0.54–1.91) |
| Serious maternal morbidity | 0 (0) | 14 (1.1) | N/Ae | 1 (<1) | 9 (1.1) | N/Ae | 5 (1.7) | 1 (<1) | N/Ae |
| Preeclampsia with severe features | 13 (7.9) | 148 (11.8) | 0.64 (0.35–1.16) | 11 (6.9) | 81 (10.1) | 0.63 (0.33–1.22) | 20 (6.8) | 16 (9.6) | 0.69 (0.35–1.38) |
| Hemorrhage requiring blood transfusion | 7 (4.2) | 44 (3.5) | 1.22 (0.54–2.77) | 4 (2.5) | 29 (3.6) | N/Ae | 17 (5.8) | 2 (1.2) | N/Ae |
| Placental abruption | 1 (<1) | 4 (<1) | N/Ae | 1 (<1) | 2 (<1) | N/Ae | 0 (0) | 1 (<1) | N/Ae |
| Primary composite neonatal outcome | 36 (21.8) | 192 (15.3) | 1.44 (0.96–2.17) | 24 (15.0) | 112 (14.0) | 1.01 (0.62–1.65) | 47 (16.0) | 22 (13.2) | 1.24 (0.72–2.15) |
| Secondary neonatal outcomes, n(%) | |||||||||
| Length of neonatal stay (Mean ± SD) | 1.5 ± 4.3 | 0.9 ± 3.9 | 0.48 (-0.15, 1.12) | 1.4 ± 4.7 | 0.7 ± 3.3 | 0.46 (-0.15, 1.07) | 0.7 ± 2.1 | 0.5 ± 1.6 | 0.16 (-0.21, 0.53) |
| NICU admission, n(%) | 37 (22.4) | 196 (15.7) | 1.51 (1.00–2.27) | 29 (18.1) | 98 (12.2) | 1.40 (0.88–2.24) | 43 (14.7) | 17 (10.2) | 1.47 (0.80–2.68) |
| RDS, n(%) | 13 (7.9) | 37 (3.0) | 2.70 (1.40–5.22) | 6 (3.8) | 12 (1.5) | 2.67 (0.98–7.28) | 7 (2.4) | 1 (<1) | N/Ae |
| TTN, n(%) | 8 (4.9) | 43 (3.4) | 1.41 (0.65–3.07) | 8 (5.0) | 23 (2.9) | 1.63 (0.71–3.75) | 10 (3.4) | 3 (1.8) | N/Ae |
| Hypoglycemia, n(%) | 32 (19.4) | 134 (10.7) | 1.97 (1.27–3.08) | 23 (14.4) | 62 (7.7) | 1.82 (1.06–3.10) | 16 (5.5) | 11 (6.6) | 0.51 (0.21–1.23) |
Planned delivery group included anyone with a scheduled induction of labor or cesarean without labor from 37w0d to 37w2d with indications of chronic hypertension, fetal growth restriction, macrosomia, prior stillbirth, diabetes, maternal cardiac disease, positive fetal lung maturity, previa or elective. Other participants who were still pregnant at or beyond 37w0d were considered expectantly managed.
Adjusted odds ratio with 95% confidence interval was obtained by multivariable logistic regression models for binary outcomes. Covariates included maternal BMI and pre-existing diabetes which were different between groups at baseline. The difference for length of neonatal stay between planned delivery and expected management with 95% confidence interval was estimated by analysis of covariance (ANCOVA).
Planned delivery group included anyone with a scheduled induction of labor or cesarean without labor from 38w0d to 38w2d with indications as detailed in footnote a. Other participants who were still pregnant at that time were considered expectantly managed.
Planned delivery group included anyone with a scheduled induction of labor or cesarean without labor from 39w0d to 39w2d with indications as detailed in footnote a. Other participants who were still pregnant at that time were considered expectantly managed.
N/A: Multivariable modeling was not performed if count less than 5
Bolded numbers are statistically significant results.