Volume 26, Number 3—March 2020
Research
High Prevalence of and Risk Factors for Latent Tuberculosis Infection among Prisoners, Tianjin, China
Guoqin Zhang, Yuhua Zhang, Da Zhong, Sukai Meng, Liqun An, Wenliang Wei, Zhi Zhang, Yanyong Fu, and Xiexiu Wang
Table 1
IGRA results for prisoners with specific TB incidences in prisons, Tianjin, China*
| Prison no. | TB incidence† | No. (%) seropositive | No. (%) seronegative | Total | p value |
|---|---|---|---|---|---|
| 1 | 1,945.2 | 106 (60.9) | 68 (39.1) | 174 | <0.01 |
| 2 | 649.9 | 72 (41.9) | 100 (58.1) | 172 | NA |
| 3 | 892.7 | 91 (47.2) | 102 (52.8) | 193 | NA |
| 4 | 944.6 | 129 (57.6) | 95 (42.4) | 224 | NA |
| 5 |
603.0 |
101 (51.5) |
95 (48.5) |
196 |
NA |
| Overall | 1,028.9 | 499 (52.0) | 460 (48.0) | 959 | NA |
*IGRA, interferon-γ release assay; NA, not applicable; TB, tuberculosis.
†Reported pulmonary TB incidence (cases/100,000 persons) in the past 5 years was based on annual TB screening and case finding through daily healthcare seeking.
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