Table 3.
Univariable and multivariable logistic regression analyses of factors potentially associated with the presence of respiratory disease in cats
| Univariable analysis | Multivariable analysis | |||||
|---|---|---|---|---|---|---|
| Variable | Crude OR | 95% CI | P | Adjusted OR | 95% CI | P |
| Age (years) | 1.13 | 0.99‐1.30 | .076 | 1.09 | 0.94‐1.26 | .24 |
| Body weight (kg) | 1.25 | 0.80‐1.96 | .32 | NA | NA | NA |
| 9‐point body condition score | 1.29 | 0.80‐2.09 | .30 | NA | NA | NA |
| Second‐hand smoke (%) | 2.71 | 0.56‐13.12 | .21 | NA | NA | NA |
| Incense burning (%) | 4.48 | 0.55‐36.78 | .16 | NA | NA | NA |
| Cooking behavior/fume (%) | 2.11 | 0.71‐6.28 | .18 | NA | NA | NA |
| Household chemicals (%) | 0.25 | 0.03‐1.89 | .18 | NA | NA | NA |
| Average PM2.5 (μg/m3) | 1.04 | 1.00–1.09 | .080 | NA | NA | NA |
| Environmental temperature (°C) | 0.84 | 0.70‐1.00 | .051 | 0.79 | 0.64‐0.97 | .023 |
| Environmental humidity (%) | 1.03 | 0.97‐1.10 | .36 | NA | NA | NA |
| Unacceptable PM2.5 level (%) | 3.51 | 1.10‐11.15 | .033 | 4.13 | 1.12‐15.27 | .033 |
Bolded values indicating 2‐tailed P < .05.
Abbreviation: NA, not applicable (not included in multivariable model).