Table 4. Time-Varying Adjusted HR for Disabilities.
| Disability | Adjusted HR (95% CI)a | P value |
|---|---|---|
| Cognitive disability | ||
| 0 to 1 y | 3.52 (1.78-6.96) | <.001 |
| >1 to 3 y | 6.05 (3.45-10.59) | <.001 |
| >3 to 5 y | 2.38 (1.27-4.48) | .007 |
| >5 y | 3.08 (2.54-3.73) | <.001 |
| Seizures | ||
| 0 to 1 y | 7.86 (5.19-11.91) | <.001 |
| >1 to 3 y | 9.42 (5.83-15.21) | <.001 |
| >3 to 5 y | 4.91 (2.98-8.10) | <.001 |
| >5 y | 2.85 (2.25-3.59) | <.001 |
| Hearing loss | ||
| 0 to 1 y | 26.73 (16.35-43.71) | <.001 |
| >1 to 3 y | 22.92 (12.07-43.54) | <.001 |
| >3 to 5 y | 9.11 (5.12-16.22) | <.001 |
| >5 y | 5.53 (4.53-6.74) | <.001 |
| Motor function disorders | ||
| 0 to 1 y | 7.82 (5.10-11.99) | <.001 |
| >1 to 3 y | 7.25 (4.77-11.01) | <.001 |
| >3 to 5 y | 4.33 (2.50-7.51) | <.001 |
| >5 y | 2.90 (2.10-4.00) | <.001 |
| Visual disturbances | ||
| 0 to 1 y | 8.83 (6.41-12.17) | <.001 |
| >1 to 3 y | 2.11 (1.47-3.02) | <.001 |
| >3 to 5 y | 1.41 (0.89-2.23) | .14 |
| >5 y | 1.73 (1.40-2.12) | <.001 |
| Behavioral and emotional disorders | ||
| 0 to 1 y | 1.88 (1.17-3.03) | .009 |
| >1 to 3 y | 1.20 (0.72-1.99) | .50 |
| >3 to 5 y | 1.56 (1.03-2.36) | .04 |
| >5 y | 1.40 (1.23-1.59) | <.001 |
| Intracranial structural injuries | ||
| 0 to 1 y | 59.15 (20.13-173.80) | <.001 |
| >1 to 3 y | 22.07 (7.24-67.26) | <.001 |
| >3 to 5 y | 20.61 (5.63-75.44) | <.001 |
| >5 y | 16.67 (8.13-34.20) | <.001 |
a
Adjusted for age at the index date, the index year, sex, parental educational attainment, birth characteristics (5-minute Apgar score, birth weight, head circumference), and 7 preexisting conditions (malignant neoplasms, perinatal complications, mental and behavioral disorders, diseases of the nervous system, congenital disabilities, traumatic injuries, and operations in the nervous system).