Table 3.
Adjusted odds ratios comparing the obstetric and delivery outcomes of subfertile and ART-treated to fertile women among singleton, vaginal deliveries
| Prematurity (< 37 weeks) | Low birthweight (< 2500 g) | Small for gestational age2 | Fetal/perinatal death (≥ 20 weeks–7 days) | Perinatal death (0–7 days) | Maternal delivery prolonged LOS | Maternal readmission HD/ED/OS | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| % | AOR (95%CI)1 | % | AOR (95% CI)1 | % | AOR (95% CI)1 | % | AOR (95% CI) | % | AOR (95% CI)1 | % | AOR (95% CI)1 | % | AOR (95% CI)1 | |
| Group | ||||||||||||||
| Fertile | 6.9 | 1.00 (referent) | 6.1 | 1.00 (referent) | 10.3 | 1.00 (referent) | 0.7 | 1.00 (referent) | 0.3 | 1.00 (referent) | 9.5 | 1.00 (referent) | 3.1 | 1.00 (referent) |
| Subfertile | 8.7 | 1.25 (1.03–1.50) | 7.6 | 1.40 (1.15–1.71) | 9.9 | 0.99 (0.84–1.18) | 1.7 | 2.64 (1.72–4.05) | 0.7 | 3.02 (1.55–5.88) | 12.9 | 1.14 (0.97–1.34) | 3.2 | 1.30 (0.97–1.74) |
| ART | 10.1 | 1.40 (1.25–1.50) | 8.0 | 1.41 (1.23–1.62) | 10.2 | 1.02 (0.90–1.15) | 0.9 | 1.28 (0.86–1.92) | 0.4 | 1.70 (0.94–3.09) | 15.3 | 1.33 (1.19–1.48) | 2.5 | 1.02 (0.81–1.30) |
| Subfertile | 8.7 | 1.00 (referent) | 7.6 | 1.00 (referent) | 9.9 | 1.00 (referent) | 1.7 | 1.00 (referent) | 0.7 | 1.00 (referent) | 12.9 | 1.00 (referent) | 3.2 | 1.00 (referent) |
| ART | 10.1 | 1.22 (0.98–1.52) | 8.0 | 1.07 (0.84–1.35) | 10.2 | 0.99 (0.81–1.22) | 0.9 | 0.61 (0.36–1.05) | 0.4 | 0.68 (0.33–1.41) | 15.3 | 1.17 (0.97–1.41) | 2.5 | 0.79 (0.55–1.15) |
LOS length of stay, HD hospital discharge, ED emergency discharge, OS observational stay
1AOR adjusted odds ratio; multivariable logistic regression adjusted for maternal age, race, insurance, education, marital status, diabetes, chronic hypertension, previous uterine surgery, gestational diabetes, pregnancy hypertension, bleeding, and placental complications
2Among live births only