Table 3. Results of univariate and multivariate analysis.

		Univariate analysis			Multivariate analysis
Variable		OR	95% CI	P value	OR	95% CI	P value
Representative cavity
Thickness of the thickest cavity wall (mm)		0.96	0.94–0.99	0.002
Thickness of the thinnest cavity wall (mm)		0.95	0.89–1.02	0.190
The ratio of thickness		0.92	0.86–0.99	0.022
Thickening of adjacent pleura		2.5	1.65–3.78	0.001	5.54	2.02–15.2	0.001
Ancillary finding
Satellite tree-in-bud pattern nodules (referent to >6 mm)
	<3 mm	4	2.45–6.53	<0.001
	3–6 mm	0.62	0.4–0.97	0.037
Margin of tree-in-bud pattern nodules (referent to well-defined)
	Ill-defined	4.38	2.73–7.04	<0.001	8	2.1–30.4	0.002
	Number of non-cavitary nodules (≥10mm)	0.88	0.79–0.98	0.025	0.72	0.56–0.9	0.015
Bronchiectasis
	RUL	5.91	3.12–11.2	<0.001	4.7	1.3–16.4	0.015
	RML	5.9	3.02–11.5	<0.001
	RLL	5	2.54–9.86	<0.001
	LUL	4.1	2.05–8.19	<0.001
	Lingular division	5.11	2.5–10.4	<0.001
	LLL	2.7	1.31–5.58	0.007
	Bronchiectasis involving > 5 lobes	19	2.54–141.9	0.004
Clinical finding
BMI		0.99	0.98–1	0.343
Smoking (reference to current smoker)
	Ex-smoker	1.13	0.73–1.74	0.583
	Never smoker	1.75	1.19–2.58	0.005	6.52	1.88–22.6	0.003
	Previous TB history	3.65	2.13–6.24	<0.001	3.57	1.23–10.4	0.02
Underlying disease
	DM	0.3	0.17–0.55	<0.001
Symptom
	Cough	1.3	0.98–1.74	0.07
	Sputum	1.32	0.96–1.8	0.083
	Hemoptysis	2.19	1.21–3.95	0.009
	Dyspnea	0.05	0.01–0.39	0.004	0.05	0.003–0.74	0.03

OR = odds ratio, CI = confidence interval.