Table 1. Differences in the prevalence rates for cases suspected of TB and those diagnosed with TB depending on various demographic and clinical characteristics.
| Total | Screening outcomes | ||||
|---|---|---|---|---|---|
| Suspected | Active TB | ||||
| No. (%) | No. (%) | p-value* | No. (%) | p-value* | |
| Age, yr | |||||
| 60–69 | 2,832 (22.8) | 19 (0.67) | <0.001 | 1 (0.04) | 0.039 |
| 70–74 | 2,709 (21.8) | 43 (1.59) | 1 (0.04) | ||
| 75–79 | 3,715 (30.0) | 69 (1.86) | 5 (0.13) | ||
| 80–84 | 2,099 (16.9) | 46 (2.19) | 4 (0.19) | ||
| ≥85 | 1,047 (8.4) | 34 (3.25) | 5 (0.48) | ||
| Sex | |||||
| Male | 4,205 (33.9) | 110 (2.62) | <0.001 | 10 (0.24) | 0.010 |
| Female | 8,197 (66.1) | 101 (1.23) | 6 (0.07) | ||
| Symptom of TB | |||||
| Yes | 792 (6.4) | 28 (3.54) | <0.001 | 3 (0.38) | NS |
| No | 11,608 (93.6) | 183 (1.58) | 13 (0.11) | ||
| Screening history | |||||
| Yes | 2,285 (18.4) | 39 (1.71) | NS | 4 (0.18) | NS |
| No, unknown | 10,117 (81.6) | 172 (1.70) | 12 (0.12) | ||
| TB history | |||||
| Yes | 593 (4.8) | 52 (8.77) | <0.001 | 3 (0.51) | 0.038 |
| No, unknown | 11,809 (95.2) | 159 (1.35) | 13 (0.11) | ||
| Co-morbidities† | |||||
| Yes | 7,460 (60.2) | 117 (1.57) | NS | 7 (0.09) | NS |
| No | 4,942 (39.8) | 94 (1.90) | 9 (0.18) | ||
*p-values were calculated using chi-square tests. †Comorbidities among active TB cases: hypertension (n=4), cardiovascular disease (n=1), dyslipidemia (n=1), and gastrointestinal disease (n=1).
TB: tuberculosis; NS: not significant.