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Table 1 Comparison of pulmonary and extra pulmonary tuberculosis according to demographic, life style and clinical characteristics

From: Comparison of pulmonary and extrapulmonary tuberculosis in Nepal- a hospital-based retrospective study

Characteristics EPTB (n = 230) PTB (n = 244) p-value
Demographic characteristics
< 25 years 94 (40.9%) 69 (28.3%) < 0.001
25–50 years 86 (37.4%) 63 (25.8%)  
> 50 years 50 (21.7%) 112 (45.9%)  
Gender (Male/Female) 119/111 170/74 < 0.001
Clinical characteristics
Presence of Diabetes mellitus 2 (0.9%) 16 (6.6%) 0.001
Use of immunosuppressive drugs 3 (1.3%) 20 (8.2%) < 0.001
Past history of pulmonary tuberculosis 10 (4.3%) 37 (15.2%) 0.001
History of contact with TB patients 19 (8.3%) 28 (11.5%) 0.07
Median contact-disease interval in months (quartiles) 24 (6, 54) 24 (6, 84) 0.66
HIV positive patients* Number positive/Number tested 10/48 (20.1%) 6/31 (19.4%) 0.99
Smoking habits
Never smoked 166 (72.2%) 113 (46.3%) < 0.001
Currently smoking 34 (14.8%) 81 (33.2%)  
Quit at least 6 months previously 20 (8.7%) 45 (18.5%)  
Alcohol use
Never drank alcohol 184 (80%) 160 (65.6%) < 0.001
Currently drinking 24 (10.4%) 49 (20.1%)  
Quit at least 6 months previously 12 (5.2%) 30 (12.3%)  
  1. * HIV status was not known for all the patients.