Table 3. Associations between cat allergen exposures stratified based on the previously defined threshold and reported asthmatic respiratory symptoms, excluding subjects who reported current use of asthma medication or the use of steroid nasal spray/ antihistamines for allergy in the past 12 months.
| Any lower respiratory symptoms v.s. reference group | ||||||
|---|---|---|---|---|---|---|
| μg/g | any lower resp. symp. | sensitized to cat | allergic symptoms near cat/dog/horses | |||
| OR 1 (CI) | OR 1 (CI) | OR 1 (CI) | ||||
| undetectable | 409 | 208 | 205 | |||
| 0.10–0.23 | 400 | 0.93 (0.69–1.26) | 214 | 0.68 (0.33–1.38) | 230 | 1.25 (0.66–2.36) |
| 0.24–0.63 | 351 | 1.09 (0.80–1.50) | 186 | 1.08 (0.55–2.12) | 207 | 2.13 (1.15–3.97) |
| 0.64–8.0 | 361 | 0.82 (0.60–1.14) | 206 | 0.92 (0.46–1.84) | 219 | 1.33 (0.70–2.56) |
| >8.0 | 370 | 0.97 (0.70–1.33) | 191 | 0.84 (0.42–1.70) | 191 | 0.83 (0.41–1.69) |
1 Adjusted for sex, smoking, frequency of mattress-protector, mattress vacuuming and centre (as random effect)