Table 2.
Maternal Characteristicstab
| Author (publication year) | Number of SGA infants receiving ACS (n) | Number of SGA infants not receiving ACS (n) | Mean maternal age (years ± SD) | Nulliparity (n, %) | Maternal diabetes (n, %) | Maternal hypertensive disorder (n, %) | Chorioamnionitis† (n, %) | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| +ACS | −ACS | +ACS | −ACS | +ACS | −ACS | +ACS | −ACS | +ACS | −ACS | |||
| Kim (2018) | 45 | 37 | 34 | 33 | 29 (64.6) | 26 (70.3) | 2 (4.4) | 2 (5.4) | 25 (55.6) | 18 (48.6) | 0 (0.0) | 1 (2.7) |
| CSGRDSPI (2017) | - | - | - | - | - | - | - | - | - | - | - | - |
| Melamed (2016) | 698 | 220 | 32.4 ± 6.1 | 30.8 ± 5.3 | 395 (56.6) | 110 (50.0) | 71 (10.2) | 16 (7.3) | 489 (70) | 94 (44) | 0 (excluded) | 0 (excluded) |
| Hoellen (2016) | 58 | 23 | - | - | - | - | - | - | - | - | - | - |
| Riskin-Mashiah (2015) | 1246 | 525 | - | - | - | - | 64 (5.1) | 23 (4.4) | 753 (76.8) | 227 (23.2) | - | - |
| Griffin (2015) | 271 | 377 | - | - | - | - | - | - | - | - | - | - |
| Ishikawa (2015) | 719 | 1210 | 32.0 ± 4.9 | 32.1 ± 5.0 | 437 (60.8) | 746 (61.7) | 8 (1.1) | 25 (2.1) | 318 (44.2) | 605 (50.0) | clinical: 43 (6.0) histologic: 46 (9.1) | clinical: 75 (6.3) histologic: 46 (5.5) |
| Mitsiakos (2013) | 87 | 62 | 30.9 ± 6.3 | 29.5 ± 6.0 | - | - | - | - | 41 (47.1) | 35 (56.4) | 6 (6.9) | 2 (3.2) |
| van Stralen (2009) | 54 | 34 | 30.0 ± 5.9 | 32.8 ±5.5 | 22 (40.7) | 8 (23.5) | - | - | 46 (85.2) | 24 (70.5) | - | - |
| Torrance (2007) | 146 | 19 | - | - | - | - | - | - | 99 (67.8) | 7 (36.8) | - | - |
| Foix-L’Helias (2005) | 96 | 55 | - | - | - | - | - | - | - | - | - | - |
| Schaap (2001) | 62 | 62 | 29.0 ± 5.0 | 29.0 ± 5.0 | 37 (59.6) | 40 (64.5) | - | - | 37 (59.7) | 51 (82.3) | - | - |
| Bernstein (1999) | 937 | 783 | - | - | - | - | - | - | - | - | - | - |
| Elimian (1999) | 63 | 157 | - | - | - | - | - | - | - | - | clinical: 2 (3.2) histologic: 11 (17.5) | clinical: 6 (3.8) histologic: 34 (21.6) |
| Ley (1997) | 117 | 117 | - | - | - | - | - | - | - | - | - | - |
| Spinillo (1995) | 32 | 64 | - | - | - | - | - | - | - | - | - | - |
| Weighted-average | - | - | 32.0 | 31.7 | 58.3% | 59.5% | 5.4% | 3.3% | 59.1% | 48.9% | clinical: 5.6% histologic: 7.3% | clinical: 5.7% histologic: 5.9% |
*
SGA=small-for-gestational age, ACS=antenatal corticosteroids, SD=standard deviation, CSGRDSPI=Collaborative Study Group for Respiratory Distress in Preterm Infants, +ACS=infants received antenatal corticosteroids, −ACS=infants did not receive antenatal corticosteroids
†
Chorioamnionitis is clinically diagnosed unless otherwise specified
‡
Blank cells represent missing data