Table 1.

Univariate analysis of demographic characteristics and associated risk factors in TB

		TB Patients		Healthy controls		OR (95 % CI)
		N (%)		N (%)
Sex	Male	427	74.39	410	70.45
	Female	147	25.61	172	29.55	0.821(0.634,1.063)
Age (years)	19-30	73	12.72	85	14.60	Reference
	31-50	219	38.15	205	35.22	1.244(0.862,1.794)
	51-70	195	33.97	182	31.27	1.248(0.860,1.810)
	71-84	87	15.16	110	18.90	0.921(0.605,1.402)
Marital status	Married	403	70.21	397	68.21
	Other	171	29.79	185	31.79	0.911(0.709,1.169)
Education background	Primary school or below	234	40.77	239	41.07	Reference
	Junior high school	178	31.01	182	31.27	0.999(0.759,1.314)
	Senior high school or above	162	28.22	151	25.95	1.096(0.823,1.458)
BMI	<18.5	208	36.24	199	34.19	Reference
	18.5-24.9	334	58.19	325	55.84	0.983(0.768,1.259)
	≥25	32	5.57	58	9.97	0.528(0.329,0.847)*
Smoking	No	242	42.16	312	53.61
	Yes	332	57.84	270	46.39	1.585(1.257,2.000)*
Alcohol drinking	No	477	83.10	496	85.22
	Yes	97	16.90	86	14.78	1.173(0.855,1.609)
History of BCG vaccination	No	462	80.49	416	71.48
	Yes	112	19.51	166	28.52	0.608(0.462,0.799)*
cooking with solid fuel	No	234	40.77	312	53.61
	Yes	340	59.23	270	46.39	1.679(1.330,2.119)*
Tea drinking	No	301	52.44	243	41.75
	Yes	273	47.56	339	58.25	0.650(0.515,0.820)*

*P < 0.05