Predictors of poor score (9 or more) on function scale after 1 year.
| Had poor function n (%) | Did not have poor function n (%) | Crude OR (95% CI) | Adjusted OR (95% CI)a | LR χ2 (P-value) | |
|---|---|---|---|---|---|
| Symptoms and signs: | |||||
| High temperature | 9 (19) | 28 (16) | 1.24 (0.54–2.86) | 1.53 (0.64–3.66) | 0.89 (0.35) |
| Vomiting | 12 (26) | 35 (21) | 1.35 (0.63–2.88) | 1.28 (0.59–2.78) | 0.38 (0.54) |
| Ear discharge | 18 (39) | 42 (25) | 1.94 (0.98–3.86) | 1.62 (0.79–3.32) | 1.67 (0.20) |
| Bulging drum | 23 (50) | 83 (47) | 1.11 (0.58–2.12) | 1.03 (0.52–2.02) | 0.01 (0.94) |
| Past history — prior episodes of otitis media: | |||||
| 0 | 17 (37) | 87 (57) | 1 | 1 | 4.56 (0.033) (test for trend) |
| 1 | 16 (35) | 38 (25) | 2.15 (0.99–4.71) | 2.15 (0.99–4.71) | |
| 2 | 13 (28) | 29 (19) | 2.29 (0.99–5.29) | 2.29 (0.99–5.29) | |
| Family/social factors — child care: | |||||
| Playgroup | 6 (20) | 27 (23) | 1 | 1 | 1.24 (0.54) |
| Nursery | 3 (10) | 18 (15) | 0.75 (0.17–3.39) | 0.61 (0.13–2.89) | |
| School | 21 (70) | 73 (62) | 1.29 (0.47–3.55) | 1.25 (0.44–3.58) | |
OR = odds ratio. LR = likelihood ratio.
↵a Adjusted for significant predictors of outcome. Other variable assessed in models and shown not to predict outcome: asthma, eczema, exposure to smoke in the home, educational status of parents, history of breast feeding, past and current use of dummy, sibling having had otitis media.