Table 3.
Relation between headache in childhood and main outcomes at age 33. Values are odds ratios (95% confidence intervals) unless stated otherwise. Odds ratios refer to baseline group for each category of headache in childhood. Model 1 controls for sex and social class only, model 2 controls additionally for all variables in childhood, and model 3 controls additionally for all variables in childhood and psychiatric morbidity
| No of participants exposed | No (%) of cases | Model 1 | Model 2 | Model 3 | |
|---|---|---|---|---|---|
| Multiple physical symptoms | |||||
| No childhood headache | 5631 | 456 (8.1) | 1.00 | 1.00 | 1.00 |
| Headache | 1153 | 164 (14.2) | 1.85 (1.52 to 2.24) | 1.77 (1.46 to 2.14) | 1.61 (1.31 to 1.99) |
| Recurrent headache | 253 | 36 (14.2) | 1.82 (1.26 to 2.63) | 1.69 (1.17 to 2.45) | 1.67 (1.12 to 2.49) |
| χ2=35.9, P<0.001 | χ2=29.2, P<0.001 | χ2=20.2, P<0.001 | |||
| Headache | |||||
| No childhood headache | 5657 | 690 (12.2) | 1.00 | 1.00 | 1.00 |
| Headache | 1163 | 247 (21.2) | 1.92 (1.63 to 2.26) | 1.87 (1.58 to 2.20) | 1.79 (1.51 to 2.12) |
| Recurrent headache | 253 | 61 (24.1) | 2.30 (1.69 to 3.12) | 2.22 (1.63 to 3.02) | 2.22 (1.62 to 3.06) |
| χ2=69.4, P<0.001 | χ2=62.9, P<0.001 | χ2=54.6, P<0.001 | |||
| Psychiatric morbidity | |||||
| No childhood headache | 5615 | 718 (12.8) | 1.00 | 1.00 | Not applicable |
| Headache | 1148 | 211 (18.4) | 1.51 (1.27 to 1.79) | 1.17 (1.00 to .137) | |
| Recurrent headache | 252 | 43 (17.1) | 1.38 (0.98 to 1.93) | 1.24 (0.91 to 1.68) | |
| χ2=18.2, P<0.001 | χ2=13.6, P<0.001 | ||||