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Table 3 Comparison of characteristics of study subjects who were having cough of two or more weeks and provided at least one sputum sample for diagnosis of pulmonary tuberculosis (PTB) by smear and/or bacteriological culture test in two peri-urban neighbourhoods of Karachi, Pakistan, May 2002–November 2002; (n = 114).

From: Hyperendemic pulmonary tuberculosis in peri-urban areas of Karachi, Pakistan

Variable PTB Positive PTB negative P value*
  (n = 18) (n = 96)  
  n (%) n (%)  
Gender    
   Male 11 (61.1) 21 (21.9) 0.001
   Female 7 (38.9) 75 (78.1)  
Age (years)    
   15–34 6 (33.3) 33 (34.4) 0.965
   35–44 3 (16.7) 18 (18.8)  
   ≥ 45 9 (50.0) 45 (46.9)  
Close contact with TB patient    
   Yes 13 (72.2) 46 (47.9) 0.151
   No 5 (44.4) 50 (52.1)  
Past history of tuberculosis    
   Yes 7 (38.9) 32 (33.3) 0.870
   No 11 (61.1) 64 (66.7)  
Current smoking status    
   Yes 7 (38.9) 38 (39.6) 0.587
   No 11 (61.1) 58 (60.4)  
Current marital status    
   Married 10 (55.6) 59 (61.5) 0.498
   Single 8 (44.4) 37 (38.5)  
Household size    
   ≤ 8 13 (72.2) 69 (71.9) 0.611
   > 8 5 (27.8) 27 (28.1)  
Education (school years)    
   Nil 17 (94.4) 89 (92.7) 0.631
   Some 1 (5.6) 7 (7.3)  
  1. p-value associated with chi-square or fisher exact test statistic in case the expected frequency of any of cell in 2 × 2 table was less than 5.