Table 5 Comparisons of differences in atopic dermatitis incidences and associated HRs in participants exposed to quartile (Q1-Q4) daily average concentrations of air pollutants

 Q1

63,003

504

729,958

0.69

Ref.

Ref.

 Q2

60,660

788

694,338

1.13

1.64

(1.47, 1.83)

1.65

(1.47, 1.84)

 Q3

70,328

2863

695,742

4.12

5.72

(5.21, 6.29)

6.43

(5.85, 7.07)

 Q4

52,853

3149

487,850

6.45

8.82

(8.03, 9.69)

10.6

(9.60, 11.6)

 Q1

55,312

1046

606,958

1.72

Ref.

Ref.

 Q2

75,581

1692

834,767

2.03

1.18

(1.09, 1.27)

1.14

(1.06, 1.24)

 Q3

54,687

1878

551,734

3.40

1.92

(1.78, 2.07)

1.93

(1.79, 2.09)

 Q4

61,264

2688

614,430

4.37

2.48

(2.31, 2.66)

2.47

(2.29, 2.66)

 Q1

57,832

482

664,004

0.73

Ref.

Ref.

 Q2

62,400

921

713,125

1.29

1.79

(1.60, 1.99)

1.70

(1.52, 1.89)

 Q3

64,035

1713

689,674

2.48

3.38

(3.05, 3.73)

3.32

(3.00, 3.67)

 Q4

62,577

4188

541,086

7.74

9.99

(9.09, 11.0)

11.9

(10.8, 13.1)