Characteristics of mothers and children and prevalence of respiratory and atopic symptoms
| Maternal characteristics | n = 1253 | Children’s characteristics | n = 1253 |
|---|---|---|---|
| FFQ, food frequency questionnaire; IQR, interquartile range. | |||
| Age at recruitment (mean, 95% CI) | 29.9 (29.6 to 30.2) | Male (%) | 630 (50.3%) |
| Partner’s social class (% non-manual) | 767 (61.2%) | Birth weight (g) (mean, 95% CI) | 3458 (3426 to 3489) |
| Age left full time education (median, IQR) | 18.5 (16.0–21.0) | Ever breast fed | 74.3% |
| FFQ returned | 1212 (96.7%) | ||
| Smoking during pregnancy | 288 (23.0%) | ||
| Prevalence of respiratory and allergic symptoms | |||
| Ever wheezed | 415 (33.1%) | Wheeze in last 12 months | 162 (12.9%) |
| Current asthma | 125 (10.0%) | Wheeze in absence of cold in last 12 months | 84 (6.7%) |
| Ever had asthma | 189 (15.1%) | Ever wheezed | 253 (20.2%) |
| Asthma medication | 123 (9.8%) | Asthma and wheeze in last 12 months | 107 (8.5%) |
| Ever had hay fever | 313 (25.0%) | Doctor confirmed asthma | 145 (11.6%) |
| Ever had eczema | 213 (17.0%) | Ever had asthma | 156 (12.5%) |
| Atopic sensitisation | 448 (35.8%) | Doctor confirmed eczema | 380 (30.4%) |
| Current eczema treatment | 191 (15.3%) | ||
| Ever had eczema | 406 (32.4%) | ||
| Doctor confirmed hay fever | 68 (5.4%) | ||
| Current hay fever medication | 44 (3.5%) | ||
| Ever had hay fever | 111 (8.9%) | ||
| Atopic sensitisation (n = 699) | 149 (21.3%) | ||