Table 2.
Predicting factors for chronic obstructive pulmonary disease
| Factor | Univariate analysis | Multivariate analysis | ||||
|---|---|---|---|---|---|---|
| Crude OR | 95%CI | p-value | OR | 95%CI | p-value | |
| Age | 1.035 | 0.967–1.109 | 0.749 | 0.998 | 0.917–1.088 | 0.978 |
| Gender | 1.000 | 0.368–2.720 | 0.061 | 1.567 | 0.341–7.203 | 0.563 |
| BMI | 1.076 | 0.953–1.216 | 0.692 | 1.108 | 0.942–1.303 | 0.217 |
| Smoking status | 1.404 | 0.551–3.581 | 1.000 | 0.516 | 0.144–1.854 | 0.319 |
| PSH | 0.427 | 0.258–0.705 | 0.0001 | 0.289 | 0.144–0.580 | 0.0005 |
| TBARS | 1.816 | 1.053–3.131 | 0.02 | 2.947 | 1.322–6.570 | 0.008 |
| Serotonin | 7.294 | 1.296–41.05 | 0.003 | 21.92 | 2.02–237.83 | 0.011 |
BMI body mass index, PSH protein sulfhydryl groups, TBARS thiobarbituric acid reactive substances, OR odds ratio, CI confidence interval