Table 3.
Poisson regression results for the number of chronic diseases
| Variables | β (95% CI) | P-value* |
|---|---|---|
| Sex (base = female) |
|
|
|
Male
|
−0.02 (−0.06, 0.02) |
0.330 |
| Age (base = <45 y old) |
|
|
|
45–65
|
1.75 (1.67, 1.83) |
<0.001 |
|
>65 y old
|
2.32 (2.24, 2.41) |
<0.001 |
| Marriage (base = never married) |
|
|
|
Married
|
0.44 (0.27, 0.60) |
<0.001 |
| Region (base = urban) |
|
|
|
Rural
|
0.11 (0.05, 0.18) |
<0.001 |
| Annual household income (base = ≤40 000 CNY) |
|
|
|
More than 40 000 CNY
|
−0.13 (−0.17, −0.08) |
<0.001 |
| Education (base = <7 y of education) |
|
|
|
7 to 9 y of education
|
−0.17 (−0.22, −0.12) |
<0.001 |
|
>9 y of education
|
−0.16 (−0.23, −0.11) |
<0.001 |
| BMI (base = normal weight) |
|
|
|
Underweight
|
0.01 (−0.10, 0.10) |
0.938 |
|
Overweight or obese
|
0.39 (0.36, 0.43) |
<0.001 |
| NDVI (base = Q1) |
|
|
|
Q2
|
−0.14 (−0.22, −0.07) |
<0.001 |
|
Q3
|
−0.17 (−0.27, −0.08) |
<0.001 |
| Q4 | −0.11 (−0.21, −0.01) | 0.03 |
BMI – body mass index, CI – confidence interval, CNY – Chinese Yuan, NDVI – Normalized Difference Vegetation Index
*P-values were obtained under Wald z-tests.