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. 2022 Oct 6;10:1011388. doi: 10.3389/fpubh.2022.1011388

Table 1.

Socio-demographic and clinical characteristics of latent tuberculosis-infected South Indian adult population enrolled between 2013 and 2020.

Variable Total n (%) LTB positive
n (%)
GM (range)
LTB negative
n (%)
GM (range)
P-value
Total, n 2,351 (100) 1,226 (52) 1,125 (48)
Socio-demographic characteristics-sex
Female 1,282 (55) 612 (50) 670 (60) 0.99
Male 1,069 (45) 614 (50) 455 (40)
Age, years (median)
18–34 (28) 793 (34) 381 (31) 412 (37) 0.0002
35–44 (39) 671 (29) 355 (29) 316 (28)
45–54 (49) 543 (23) 292 (24) 251 (22)
≥55 (58) 344 (14) 198 (16) 146 (13)
BMI (kg/m 2 )
Normal (18.5–22.9) 697 (30) 379 (31)
20.9 (18.5–22.9)
318 (28)
20.9 (18.5–22.9)
0.89
Undernourished ( ≤ 18.5) 192 (8) 108 (9)
17 (12.3–18.5)
84 (7)
18.8 (14.0–18.5)
Overweight (23.0–24.9) 430 (18) 218 (18)
23.9 (23–24.9)
212 (19)
24.0 (23.0–24.9)
Obesity (≥25.0) 1,032 (44) 521 (42)
28.4 (25–41.5)
511 (45)
28.6 (25.0–43.8)
HbA1c (%)
NDM ( ≤ 5.7) 1,104 (47) 551 (45)
5.3 (3.6–5.7)
553 (49)
5.3 (3.9–5.7)
0.03
PDM (>5.7– ≤ 6.4) 788 (33) 429 (35)
6 (5.7–6.4)
359 (32)
5.9 (5.7–6.4)
DM (>6.4) 459 (20) 256 (21)
7.9 (6.4–18.4)
203 (18)
8.0 (6.4–16.0)
HTN (mm Hg)
Systolic pressure ≤ 130 2,029 (86) 1,041 (85)
113 (100–130)
988 (88)
112 (100–130)
0.41
Systolic pressure >130 322 (14) 185 (15)
150 (132–2000)
137 (12)
148.6 (132–200)

LTB, latent tuberculosis; BMI, body mass index; HbA1c, glycated hemoglobin; NDM, non-diabetes mellitus; PDM, pre-diabetes mellitus; DM, diabetes mellitus; HTN, hypertension; and GM, geometric mean.