Table 3 Fetal characteristics and risk for stillbirth, 2010-2013
| Â | Stillbirth, N (%) | Live Birth, N (%) | Relative risk for stillbirth vs. livebirth (95% CI) * |
|---|---|---|---|
Estimated gestational age | Â | Â | Â |
Preterm (< 37 weeks) | 4,147 (59.4) | 22,912 (8.9) | 12.4 (11.2, 13.6) |
Term (≥37 weeks) | 2,830 (40.6) | 233,556 (91.1) | 1.0 |
Birth weight | Â | Â | Â |
< 2500g | 4,654 (64.4) | 29,993 (11.4) | 12.1 (10.8, 13.5) |
≥ 2500g | 2,570 (35.6) | 234,056 (88.6) | 1.0 |
Gender | Â | Â | Â |
Male | 3,856 (55.6) | 136,886 (51.8) | 1.2 (1.1, 1.2) |
Female | 3,083 (44.4) | 127,275 (48.2) | 1.0 |
Multiple gestation | Â | Â | Â |
Yes | 383 (5.0) | 4,457 (1.7) | 2.8 (2.4, 3.2) |
No | 7,254 (95.0) | 259,674 (98.3) | 1.0 |
Congenital anomaly | Â | Â | Â |
Yes | 330 (4.7) | 1,091 (0.4) | 9.1 (7.3, 11.4) |
No | 6,672 (95.3) | 259,098 (99.6) | 1.0 |
Breech presentation | Â | Â | Â |
Yes | 553 (7.1) | 5,749 (2.2) | 3.0 (2.6, 3.5) |
No | 7,255 (92.9) | 257,933 (97.8) | 1.0 |