Model Covariates for adjustment NRS (continuous) NRS (continuous) NRS (continuous) NRS≥3 vs. NRS<3 NRS≥3 vs. NRS<3 NRS≥3 vs. NRS<3 NRS≥7 vs. NRS<7 NRS≥7 vs. NRS<7 NRS≥7 vs. NRS<7
β 95% CI P OR 95% CI P OR 95% CI P
I Crude model 0.24 (0.14, 0.35) <0.001 1.15 (1.06, 1.25) 0.001 1.14 (1.06, 1.22) 0.001
II Demographic factors a 0.21 (0.11, 0.32) <0.001 1.13 (1.05, 1.23) 0.002 1.13 (1.05, 1.21) 0.001
III Proxy variables of exposure b 0.18 (0.08, 0.28) <0.001 1.12 (1.03, 1.22) 0.006 1.11 (1.03, 1.20) 0.006
IV Behavioral factors c 0.20 (0.10, 0.30) <0.001 1.13 (1.05, 1.23) 0.002 1.13 1.05, 1.22) 0.001
V Allergy-related conditions d 0.20 (0.10, 0.30) <0.001 1.13 (1.04, 1.22) 0.002 1.13 (1.05, 1.21) 0.001
VI Integrative model e 0.17 (0.07, 0.26) 0.001 1.13 (1.03, 1.22) 0.007 1.12 (1.03, 1.21) 0.006