Table 1.
Characteristics of the study participants
| Characteristics | TB ( n = 109) No. (%) | LTBI ( n = 225) No. (%) | HC ( n = 422) No. (%) | χ 2 /ANOVA TB.vs.LTBI | χ 2 /ANOVA LTBI.vs.HC |
|---|---|---|---|---|---|
| Age, mean ± SD, (yrs) | 45 ± 12.6 | 45 ± 16.5 | 45 ± 18.7 | 0.99 | 0.96 |
| 15~ | 16(14.7) | 34(15.1) | 63(14.9) | 1.00 | 1.00 |
| 30~ | 27(24.8) | 56(24.9) | 105(24.9) | ||
| 45~ | 45(41.2) | 92(40.9) | 173(41.0)) | ||
| 60~ | 21(19.3) | 43(19.1) | 81(19.2) | ||
| Male | 74(67.9) | 152(67.6) | 285(67.5) | 0.951 | 1.000 |
| BCG vaccination | 95(87.2) | 214(95.1) | 405(96.0) | 0.01a | 0.99 |
LTBI: latent tuberculosis infection; HC, health controls. SD, standard deviation.
a p < 0.05.