Unadjusted and adjusted relative risks (95% CI) of behavioural problems at 8 months by health outcomes at 8 weeks and sociodemographic characteristics
| Outcome at 8 weeks | Unadjusted RR (95% CI) of behavioural problems at 8 months | Adjusted RR (95% CI) of behavioural problems at 8 months |
|---|---|---|
| General health status: unhealthy | 1.04 (0.27 to 4.02) | Not entered |
| Acute minor illness: > expected | 2.07 (1.27 to 3.40) | 1.27 (0.80 to 2.01) |
| Behaviour: problems | 3.54 (2.30 to 5.47) | 3.44 (1.95 to 6.09) |
| Accidents: any | 3.21 (1.31 to 7.89) | 2.57 (0.71 to 9.33) |
| Acute illness: any | 1.82 (1.05 to 3.16) | 1.49 (0.76 to 2.92) |
| Hospital admission: any | 1.40 (0.63 to 3.07) | Not entered |
| Immunisation: not up to date | 0.86 (0.13 to 5.86) | Not entered |
| Chronic illness: any | 2.19 (0.86 to 5.56) | Not entered |
| Functional health status: impaired | 0.83 (0.21 to 3.25) | Not entered |
| Life quality: affected | 2.99 (1.00 to 8.46) | 1.80 (0.45 to 7.10) |
| Marital status: lone parent | 1.81 (1.05 to 3.12) | 1.72 (0.90 to 3.28) |
| Maternal age: < 20 | 2.51 (1.29 to 4.91) | 1.65 (0.84 to 3.86) |
| Housing tenure: rented | 1.40 (0.96 to 2.04) | Not entered |
| Mother’s education: no qualification | 1.02 (0.53 to 1.98) | Not entered |
| Ethnicity: Indian subcontinent | 0.90 (0.48 to 1.69) | Not entered |
CI, confidence interval; RR, relative risk.