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Table 1 Univariate analysis of demographic characteristics and associated risk factors in TB

From: Impact of tea drinking upon tuberculosis: a neglected issue

   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)*
  1. *P < 0.05