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. 2021 Jan 4;18(1):305. doi: 10.3390/ijerph18010305

Table 2.

Risk factors between patients with LTBI and non-LTBI.

Risk Factors Non-LTBI LTBI p-Value
n (%) Mean ± SD n (%) Mean ± SD
Smoking status
 Non-smoker 225 (85.0) 29 (85.3) >0.95 b
 Smoker 19 (7.1) 2 (5.9)
 Ex-smoker 21 (7.9) 3 (8.8)
Duration of smoking (years) 21.2 ± 10.0 19.5 ± 0.7 0.68 a
Duration of T2DM (months) 108.7 ± 83.3 104.2 ± 82.3 0.77 a
HbA1c (%) 8.5 ± 2.2 8.8 ± 2.0 0.49 a
BCG scar
 No 2 (0.8) 0 (0.0) >0.95 c
 Yes 263 (99.2) 34 (100.0)
Treatments
 Diet alone 3 (1.1) 0 (0.0) 0.45 b
 OHA 164 (61.9) 18 (53.0)
 Insulin 98 (37.0) 16 (47.0)

a Numerical variable using Independent t-test, b Categorical variable using Chi-square test, c Fisher’s exact test, T2DM: type 2 diabetes mellitus, OHA: oral hypoglycemic agent.