Table 5 Summary of the multivariate regression coefficients of five aspects for asthma

Constant coefficient, α₀

-0.05

0.01

0.03

Air quality aspect

 PM_2.5, β₁

2.64

0.17

-0.15

 ODO, β₂

-^*

0.05

-0.36

 NMHC, β₃

-0.43

0.05

-0.17

Point source aspect

 PM_2.5, γ₁

1.90

-5.06

1.01

 NO_x, γ₂

-

4.95

-0.90

 NMHC, γ₃

-1.47

-0.23

-0.67

Line source aspect

 PM_2.5, δ₁

-

-9.67

-3.65

 NO_x, δ₂

-

4.68

2.95

 NMHC, δ₃

-

7.32

0.59

Area source aspect

 PM_2.5, 𝜉₁

-2.51

0.28

0.54

 NO_x, 𝜉₂

1.66

-2.85

-0.73

 NMHC, 𝜉₃

-0.30

0.18

-0.10

Social economics aspect

 Population density, 𝜆₁

-1.15

-0.38

-0.04

 Salary, 𝜆₂

-0.37

0.10

0.27

 Medical manpower, 𝜆₃

-0.02

0.17

0.15

 R-squared

1

0.898

0.769

 p-values

-^**

0.004

0.047