Table 1 Frequency for each variable at baseline and distribution of covariates, at baseline and during follow up, according to diagnosis of asthma at the end of follow up.
Covariates | Frequency (%) | Asthma | No-asthma | Chi square P value |
|---|---|---|---|---|
Presence of allergic rhinitis | 332 (76.2) | 95% | 65% | <0.0001 |
Female sex | 199 (45.1) | 57% | 38% | <0.0001 |
Positive family history for allergic disorders | 274 (62.8) | 71% | 58% | 0.0085 |
Presence of pets in the home | 149 (34.2) | 45% | 28% | 0.0004 |
Parental smoking at home | 178 (40.8) | 63% | 57% | 0.17 |
Sensitization to Parietaria judaica | 232 (53.2) | 75% | 41% | <0.0001 |
Sensitization to house dust mite | 107 (24.5) | 28% | 23% | 0.21 |
Sensitization to Olea europea | 112 (25.7) | 32% | 22% | 0.029 |
Sensitization to grass pollen | 48 (11.0) | 14% | 10% | 0.18 |
Sensitization to orchard | 100 (22.9) | 27% | 20% | 0.13 |
Sensitization to perennial rye | 99 (22.7) | 26% | 22% | 0.34 |
Sensitization to cat | 34 (7.8) | 9% | 7% | 0.37 |
Sensitization to cypressus | 16 (3.7) | 4% | 3% | 0.56 |
Sensitization to alternaria | 18 (4.1) | 4% | 4% | 0.75 |