Table 2.
Multivariate analysis of independently relative factors for low-education patients with chronic obstructive pulmonary disease*
| Variables | OR (95% CI) | P-value |
|---|---|---|
| Age |
|
|
|
<65
|
ref |
|
|
≥65
|
1.34 (1.14-1.59) |
<0.05 |
| Sex |
|
|
|
Male
|
ref |
|
|
Female
|
1.43 (1.02-1.99) |
<0.05 |
| Biofuel exposure |
1.67 (1.12-2.48) |
<0.05 |
|
No
|
ref |
|
|
Yes
|
2.66 (2.19-3.24) |
<0.05 |
| CAT |
|
|
|
<10
|
ref |
|
|
10-19
|
1.14 (0.93-1.40) |
0.219 |
|
20-29
|
1.54 (1.17-2.01) |
<0.05 |
|
≥30
|
1.24 (0.69-2.25) |
0.473 |
| Exacerbation in the past year |
|
|
|
0
|
ref |
|
|
1
|
1.04 (0.86-1.27) |
0.681 |
|
≥2
|
1.23 (1.02-1.49) |
<0.05 |
| Asthma |
0.83 (0.69-0.99) |
<0.05 |
| Chronic heart disease | 0.43 (0.22-0.84) | <0.05 |
ref- reference, CAT – COPD assessment test, OR – odds ratio, CI – confidence interval
*Adjusted for age, sex, biofuel exposure, CAT, exacerbation in the past year, smoke status, mMRC, GOLD grades, and comorbidities.