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Table 2 Characteristics of participants in TB-positive and TB-negative groups according to results of tuberculin skin test

From: Difficulties in tuberculosis infection control in a general hospital of Vietnam: a knowledge, attitude, and practice survey and screening for latent tuberculosis infection among health professionals

 PositiveNegativeP value
n = 170n = 129
Demographics
 Sex-male, n (%)40 (23.5)30 (23.3)1.000*
Age- n (%), y  0.978*
 ≤ 2953 (31.2)40 (31.0) 
 30–3969 (40.6)51 (39.5) 
 ≥ 4048 (28.2)38 (29.5) 
Health professionals, n (%)  0.766*
 Physician45 (26.5)35 (27.1) 
 Nurse109 (64.1)85 (65.9) 
 Others16 (9.4)9 (7.0) 
Department, n (%)  <0.001*
 Respiratory Center16 (9.4)32 (24.8) 
 Emergency49 (28.8)22 (17.1) 
 Infectious Diseases16 (9.4)3 (2.3) 
 Nephrology13 (7.6)28 (21.7) 
 Hematology36 (21.2)7 (5.4) 
 Out patients23 (13.5)19 (14.7) 
 Others17 (10.0)18 (14.0) 
Years for working experiences as current profession-mean (SD), yr.9.7 (9.7)10.3 (7.0)0.469
History of TB disease, n (%)
 Personal history (n = 292)0 (0.0)3 (2.4)0.077
 Family history (n = 289)4 (2.4))2 (1.6)0.702
Record of past BCG (n = 298)83 (49.1)36 (27.9)<0.001*
Record of past TST (n = 295)165 (98.2)122 (96.1)0.297*
Possibility of exposure with TB patients  <0.001*
 Yes100 (58.8)97 (77.0) 
 No36 (21.2)4 (3.2) 
 Do not know34 (20.0)25 (19.8) 
  1. SD Standard deviation, TB Tuberculosis, BCG Bacillus Calmette-Guerin, TST Tuberculin skin test
  2. * χ2 test; †Fisher’s exact test; ‡Mann-Whitney U test