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Multivariate analysis of the factors affect on TNSS.
| The worsened TNSS group | The same/improved TNSS group | P | OR (95% CI) | |
|---|---|---|---|---|
| Heating type coal/biomass | 6(66.6%) | 10(17.9%) | 0.006 | 10.09 (1.97–51.87) |
| Frequency of outdoor activities (< 1/week) | 6(66.6%) | 20(35.7%) | 0.083 | – |
TNSS: Total Nasal Symptom Score.
