Table 1.
Patient demographics of both cohort groups.
| Non-CG group n = 4457 (%) | CG group n = 3873 (%) | p-Value | |
|---|---|---|---|
| Gender | |||
| Male | 2581 (58) | 1880 (49) | <0.001 |
| Female | 1870 (42) | 1990 (51) | |
| Age at birth | |||
| Weeks | 34.8 ± 4.5 | 34.8 ± 4.5 | 0.717 |
| Age at birth (categorized) (weeks) | |||
| <28 | 502 (11) | 499 (13) | <0.001 |
| 28–31.9 | 546 (12) | 395 (10) | |
| 32–36.9 | 1576 (35) | 1268 (33) | |
| >37 | 1833 (41) | 1711 (44) | |
| Current age | |||
| Weeks | 36.0 ± 4.0 | 35.9 ± 3.8 | 0.149 |
| Current age (categorized) (weeks) | |||
| <28 | 128 (3) | 120 (3) | 0.060 |
| 28–31.9 | 453 (10) | 437 (11) | |
| 32–36.9 | 1814 (41) | 1472 (38) | |
| >37 | 2062 (46) | 1844 (48) | |
| Age from birth | |||
| Days | 9.3 ± 22.2 | 8.8 ± 17.8 | 0.222 |
| Weight at birth | |||
| Grams | 2337 ± 971 | 2375 ± 998 | 0.081 |
| Weight at birth (categorized) (g) | |||
| <1000 | 576 (13) | 471 (12) | <0.001 |
| 1000–1499 | 280 (6) | 316 (8) | |
| 1500–2499 | 1633 (37) | 1254 (32) | |
| >2500 | 1968 (44) | 1832 (47) | |
| Current weight | |||
| Grams | 2432 ± 921 | 2450 ± 918 | 0.372 |
| Current weight (categorized) (g) | |||
| <1000 | 222 (5) | 222 (6) | 0.023 |
| 1000–1499 | 441 (10) | 382 (10) | |
| 1500–2499 | 1741 (39) | 1396 (36) | |
| >2500 | 2035 (46) | 1837 (47) | |
Data are represented as mean ± standard deviation, or as absolute numbers (percentages rounded to the nearest full number where appropriate). Data is tested with χ2 testing or with unpaired t-testing, as appropriate.