Association between head injury and satisfactory performance on KS1 assessment (adjusted ORs from model including all table variables)
| Predictor | OR (95% CI) | AOR (95% CI) |
|---|---|---|
| Head injury | ||
| None (reference) | 1 | 1 |
| Skull fracture | 0.73 (0.50 to 1.09) | 0.79 (0.52 to 1.18) |
| Concussion | 0.85 (0.33 to 2.16) | 0.87 (0.31 to 2.49) |
| Intracranial injury | 0.50 (0.33 to 0.75) | 0.46 (0.30 to 0.72) |
| Gender | ||
| Male (reference) | – | 1 |
| Female | 1.95 (1.87 to 2.03) | |
| Townsend deprivation index quintile | ||
| 1 (Least deprived) (reference) | – | 1 |
| 2 | 0.64 (0.59 to 0.69) | |
| 3 | 0.49 (0.45 to 0.52) | |
| 4 | 0.38 (0.35 to 0.41) | |
| 5 (Most deprived) | 0.26 (0.24 to 0.28) | |
| Age at KS1 assessment (years) | – | 2.77 (2.60 to 2.97) |
| Birth weight (kg) | –- | 1.41 (1.35 to 1.47) |
| Gestational age (weeks) | – | 1.01 (1.00 to 1.03) |
AOR, adjusted odds ratio.