Table 3 Results of meta‐analyses. NEC vs no NEC.
| Description | NEC | No NEC | Number of studies | I2 (%) | Odds ratio (95% CI) | p Value | References | ||
|---|---|---|---|---|---|---|---|---|---|
| n | N | n | N | ||||||
| Cerebral palsy | 79 | 393 | 590 | 3984 | 5 | 37.4 | 1.55 (1.19 to 2.03) | 0.001 | 10,14,17,19,21 |
| Visual impairment | 10 | 296 | 36 | 2857 | 3 | 0 | 2.31 (1.04 to 5.11) | 0.04 | 10,19,21 |
| Hearing impairment | 9 | 315 | 46 | 2886 | 5 | 0 | 1.50 (0.70 to 3.23) | 0.29 | 10,12,18,19,21 |
| Cognitive impairment | 133 | 369 | 882 | 3680 | 7 | 0.7 | 1.72 (1.35 to 2.19) | <0.0001 | 10,11,12,14,19,21,22 |
| Psychomotor impairment | 115 | 328 | 835 | 3605 | 5 | 0 | 1.71 (1.34 to 2.18) | <0.0001 | 11,12,17,19,21 |
| Neurodevelopmental impairment | 166 | 371 | 1243 | 3531 | 6 | 0 | 1.58 (1.25 to 1.99) | 0.0001 | 10,14,18,19,20,21 |