HRs of cerebral palsy (CP) among children with and without infant respiratory distress syndrome (IRDS) born during 32–36 weeks of gestation between 1992 and 2007 in Denmark
| Number of children with CP | ||||
|---|---|---|---|---|
| Children with IRDS | Children without IRDS | Crude HR (95% CI) | Adjusted HR (95% CI) | |
| Selected subtypes† | ||||
| Unilateral spastic CP | 12 | 74 | 2.7 (1.5–5.0) | 1.5 (0.8–2.9) |
| Bilateral spastic CP | 26 | 87 | 5.1 (3.3–7.9) | 2.2 (1.4–3.4) |
| Motor handicap (1997–2003)‡ | ||||
| GMFCS 1–2§ | 16 | 71 | 4.0 (2.3–6.8) | 2.2 (1.3–3.9) |
| GMFCS 3 | 1 | 4 | 4.4 (0.5–39) | 2.2 (0.2–21) |
| GMFCS 4–5 | 4 | 70 | 6.1 (3.3–11) | 2.5 (1.3–4.7) |
| Developmental quotient (DQ)¶ | ||||
| DQ<50 | 11 | 33 | 5.6 (2.8–11) | 2.9 (1.4–6.1) |
| DQ 50–85 | 14 | 60 | 3.9 (2.2–7.0) | 1.7 (0.9–3.1) |
| DQ>85 | 17 | 80 | 3.6 (2.1–6.1) | 1.9 (1.1–3.4) |
†Only selected subtypes are included.
‡The covariate is only valid in 1997–2003 and had missing information for two CP cases.
§Gross Motor Function Classification Skills.
¶The DQ covariate had missing data for five CP cases. Of note, we did complete case analysis.