Table 3.
Multivariate Analysis of COPD
| Factor | β | Standard Error | Wald Χ2 Price | OR | 95% CI | P Price |
|---|---|---|---|---|---|---|
| Sex | ||||||
| Woman | 1.000 | |||||
| Man | −0.400 | 0.454 | 0.776 | 0.670 | 0.275–1.633 | 0.378 |
| Nation | ||||||
| The Zang nationality | 1.000 | |||||
| The Han nationality | 1.175 | 0.470 | 6.263 | 3.238 | 1.290–8.127 | 0.012 |
| Age | ||||||
| 40–49 | 1.000 | |||||
| 50–59 | −0.199 | 0.551 | 0.130 | 0.820 | 0.278–2.415 | 0.718 |
| 60–69 | 1.033 | 0.505 | 4.188 | 2.810 | 1.045–7.557 | 0.041 |
| ≥70 | 1.238 | 0.584 | 4.503 | 3.450 | 1.099–10.826 | 0.034 |
| Degree of education | ||||||
| Primary school and below | 1.000 | |||||
| Junior middle school | 1.205 | 0.511 | 8.544 | 3.336 | 1.225–9.075 | 0.018 |
| High school and above | 1.777 | 0.608 | 6.831 | 5.910 | 1.796–19.450 | 0.003 |
| Smoking status | ||||||
| Never smoke | 1.000 | |||||
| Smoke | 2.377 | 0.556 | 18.266 | 10.774 | 3.622–32.051 | 0.000 |
| Heating way | ||||||
| Central heating | 1.000 | |||||
| Coal | 1.942 | 0.675 | 8.269 | 6.973 | 1.856–26.200 | 0.004 |
| Electric heating | 0.779 | 1.029 | 0.574 | 2.180 | 0.290–16.379 | 0.449 |
| Biofuel | 2.897 | 0.753 | 14.792 | 18.119 | 4.140–79.303 | 0.000 |
| Medical history of tuberculosis | ||||||
| Not have | 1.000 | |||||
| Have | 0.982 | 0.376 | 6.831 | 2.670 | 1.278–5.578 | 0.009 |
| Smoking years | ||||||
| 1–20 Years | 1.000 | |||||
| More than 20 years | −0.629 | 0.542 | 1.351 | 0.553 | 0.184–1.541 | 0.245 |
| Baric index | ||||||
| BMI<18.5 | 1.000 | |||||
| 18.5≤BMI<24 | −4.07 | 0.861 | 0.223 | 0.666 | 0.123–3.596 | 0.636 |
| 24≤BMI<28 | −1.079 | 0.884 | 1.488 | 0.340 | 0.060–1.924 | 0.222 |
| BMI≥28 | 0.058 | 0.899 | 0.004 | 1.060 | 0.182–6.173 | 0.949 |