Table 2 Odds ratio of the overlapping burden among individuals with underlying diseases

Age, years

1.015* (1.014, 1.015)

1.085* (1.139, 1.337)

1.019* (1.019, 1.020)

1.084* (1.082, 1.087)

Sex

 Female

1 (ref)

1 (ref)

1 (ref)

1 (ref)

 Male

1.086* (1.062, 1.110)

1.233* (1.139, 1.337)

1.066* (1.051, 1.080)

1.161* (1.108, 1.218)

Underlying diseases

 No

1 (ref)

1 (ref)

1 (ref)

1 (ref)

 Yes

1.265* (1.228, 1.303)

6.376* (5.578, 7.326)

1.127* (1.108, 1.146)

6.136* (5.698, 6.618)

Residential

 Rural

1 (ref)

1 (ref)

1 (ref)

1 (ref)

 Urban

1.149* (1.123, 1.175)

0.362* (0.336, 0.391)

1.033* (1.019, 1.047)

0.521* (0.499, 0.544)

PM2.5, 10 µg/m³

0.994* (0.989, 0.999)

0.989 (0.974, 1.004)

1.007* (1.005, 1.010)

0.971* (0.961, 0.980)

O₃, 10 µg/m³

1.015* (1.012, 1.018)

0.952* (0.943, 0.962)

0.994* (0.992, 0.996)

1.012* (1.006, 1.018)

Temperature, ˚C

0.994* (0.989, 0.993)

1.002 (0.996, 1.008)

0.998* (0.997, 0.998)

0.979* (0.977, 0.982)

Humidity, %

1.005* (1.004, 1.007)

0.998 (0.993, 1.002)

1.006* (1.005, 1.007)

1.004* (1.001, 1.007)