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Table 1 Clinical and demographic characteristics of study subjects

From: Predicting smear negative pulmonary tuberculosis with classification trees and logistic regression: a cross-sectional study

  Pulmonary Tuberculosis Non Pulmonary Tuberculosis    
Clinical and Demographic Characteristics* N % N % OR 95%CI p value
Age        
   ≤ 25 50 19.2 28 10.0 4.17 2.14–8.10 <0.01
   26–60 186 71.5 195 69.9 2.23 1.32–3.74 <0.01
   > 60 24 9.2 56 20.1 1.00 - -
Sex        
   Male 171 63.3 183 65.1 1.00 - -
   Female 99 36.7 98 34.9 1.08 0.76–1.53 0.66
Origin        
   Primary Health Care Unit 192 71. 6 151 53.7 1.00 - -
   Tertiary Health Care Unit 76 28.4 130 46.3 0.46 0.32–0.66 <0.01
Previous PT        
   Yes 65 24.3 78 27.8 0.84 0.57–1.23 0.36
   No 202 75.7 203 72.3 1.00 - -
Diabetes Mellitus        
   Yes 18 6.9 20 7.2 0.96 0.49–1.85 0.89
   No 243 93.1 258 92.8 1.00 - -
Alcohol abuse        
   Yes 51 19.0 62 22.1 0.83 0.55–1.25 0.37
   No 217 81.0 218 77.9 1.00 - -
Close Contact with PT        
   Yes 121 45.2 112 40.0 1.24 0.88–1.73 0.22
   No 147 54.9 168 60.0 1.00 - -
Smoking        
   Yes 114 42.2 152 54.1 0.62 0.44–0.87 <0.01
   No 156 57.8 129 45.9 1.00 - -
HIV +        
   Yes 57 40.7 70 41.4 0.97 0.62–1.53 0.90
   No 83 59.3 99 58.6 1.00 - -
AIDS (Caracas Criteria)        
   Yes 32 15.3 29 12.8 1.32 0.77–2.27 0.31
   No 176 84.6 211 87.9 1.00 - -
  1. * The number of subjects may vary because of missing values