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Table 1 Participant characteristics stratified by LTBI status

From: Prevalence of latent tuberculosis infection and feasibility of TB preventive therapy among Thai prisoners: a cross-sectional study

  Total
N = 1002
No LTBI
N = 536
LTBI
N = 466
P
Age (years), median (IQR) 38 (32–50) 38 (31–49) 38 (32–52) 0.07
Body mass index (kg/m2), median (IQR) 21.7 (19.8–23.5) 21.8 (20–23.7) 21.6 (19.6–23.5) 0.11
Highest education, n (%)     0.53
 • Elementary 621 (62) 324 (60.5) 297 (63.7)  
 • High school 299 (29.8) 164 (30.5) 135 (29.0)  
 • Bachelor or higher 82 (8.2) 48 (9) 34 (7.3)  
Duration in prison (years), median (IQR) 5.8 (3.8–8.2) 5.6 (3.4–7.8) 6.3 (4.2–9.1) 0.001
History of previous incarceration, n (%) 307 (30.8) 140 (26.3) 167 (36.1) 0.001
History of substance abuse, n (%) 626 (62.5) 323 (60.3) 303 (65) 0.12
History of previous active TB, n(%) 76 (7.6) 21 (3.9) 55 (11.8) < 0.001
HIV seropositive, n(%) 29 (2.9) 10(1.9) 19(4) 0.04