Table 2:
Characteristics of infants delivered to women with and without fetal reduction
| Characteristic | Fetal reduction; no. (%) of infants* | No fetal reduction; no. (%) of infants* | |||
|---|---|---|---|---|---|
|
|
|
||||
| Reduced to twin pregnancy n = 89 |
Reduced to singleton pregnancy n = 50 |
Triplet pregnancy n = 120 |
Twin pregnancy n = 6671 |
Singleton pregnancy n = 203 833 |
|
| Female sex | 40 (44.9) | 26 (52.0) | 69 (57.5) | 3316 (49.7) | 99 192 (48.7) |
|
| |||||
| Gestational age at delivery, wk, median (IQR) | 36 (33–37) | 38 (36–39) | 32 (28–33) | 36 (34–37) | 39 (38–40) |
|
| |||||
| Very preterm (< 32 wk) | 15 (16.9) | 7 (14.0) | 57 (47.5) | 679 (10.2) | 2311 (1.1) |
|
| |||||
| Preterm (< 37 wk) | 55 (61.8) | 13 (26.0) | 120 (100.0) | 4179 (62.6) | 16 731 (8.2) |
|
| |||||
| Very low birth weight (< 1500 g) | 15 (16.9) | 5 (10.0) | 49 (40.8) | 522 (7.8) | 1561 (0.8) |
|
| |||||
| Low birth weight (< 2500 g) | 51 (57.3) | 14 (28.0) | 116 (96.7) | 3359 (50.4) | 8830 (4.3) |
|
| |||||
| Small for gestational age | 25 (28.1) | 11 (22.0) | 18 (15.0) | 1282 (19.2) | 13 265 (6.5) |
|
| |||||
| Apgar score ≤ 7 at 5 min | 12 (13.5) | 6 (12.0) | 28 (23.3) | 787 (11.8) | 8557 (4.2) |
|
| |||||
| Serious neonatal morbidity or perinatal death | 14 (15.7) | 7 (14.0) | 40 (33.3) | 612 (9.2) | 4333 (2.1) |
|
| |||||
| Perinatal death | 5 (5.6) | 0 (0.0) | 12 (10.0) | 158 (2.4) | 1134 (0.6) |
Note: IQR = interquartile range.
*
Unless stated otherwise.