Table 2.
Early-neonatal, neonatal, and 120-day mortality in ELBW neonates by 5-year periods: 1985–2008.
| Birth weight | 1985–1989 n = 43# dead/# total (%) | 1990–1994 n = 22# dead/# total (%) | 1995–1999 n = 16# dead/# total (%) | 2000–2004 n = 20# dead/# total (%) | 2005–2009 n = 57# dead/# total (%) | P-value |
|---|---|---|---|---|---|---|
| Early-neonatal mortality (≤8 days) | ||||||
| 751–1000 g | 11/23§ (47.0%) | 6/14 (42.9%) | 2/13 (15.4%) | 2/7§ (28.5%) | 2/28 (7.1%) | .0008 |
| 500–750 g | 15/18 (83.3%) | 7/8 (87.5%) | 2/3 (66.7%) | 5/10§ (50.0%) | 9/23§ (39.1%) | .0004 |
| <500 g | 1/1 (100%) | — | — | 1/1 (100%) | 3/5 (60.0%) | — |
| Total | 27 (62.8)% | 13 (59.1)% | 4 (25)% | 7 (35)% | 14 (24.5)% | < .0001 |
|
| ||||||
| Neonatal mortality (≤28 days) | ||||||
| 751–1000 g | 12/23§ (52.1%) | 7/14 (50.0%) | 5/13 (38.5%) | 3/7§ (42.8%) | 3/28 (10.7%) | .001 |
| 500–750 g | 16/18 (88.9%) | 7/8 (87.5%) | 3/3 (100%) | 6/10§ (60.0%) | 13/23§ (56.5%) | .005 |
| <500 g | 1/1 (100%) | — | — | 1/1 (100%) | 3/5 (60.0%) | — |
| Total | 29 (67.4)% | 14 (63.6)% | 8 (50)% | 9 (45)% | 19 (33.3)% | .0003 |
|
| ||||||
| 120-day mortality | ||||||
| 751–1000 g | 15/23§ (65.2%) | 8/14 (57.1%) | 6/13 (46.2%) | 3/7§ (42.8%) | 4/27§ (14.3%) | .0002 |
| 500–750 g | 16/18 (88.9%) | 7/8 (87.5%) | 3/3 (100%) | 6/10§ (60.0%) | 14/23§ (60.8%) | .01 |
| <500 g | 1/1 (100%) | — | — | 1/1 (100%) | 4/5 (80.0%) | — |
| Total | 32 (74.4)% | 15 (68.2)% | 9 (56.3)% | 9 (45)% | 22 (38)% | < .0001 |
*Chi-square linear-by-linear association tests. §Includes transferred patients.