Volume 30, Number 6—June 2024
Research
Chest Radiograph Screening for Detecting Subclinical Tuberculosis in Asymptomatic Household Contacts, Peru
Table 4
Result† | No. (%) incident TB cases | Univariate analysis |
Multivariate analysis‡ |
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---|---|---|---|---|---|---|
Hazard ratio (95% CI), n = 1,440, event = 37 | p value | Hazard ratio (95% CI), n = 1,347, event = 34 | p value | |||
CXR–SX– | 14 (1) | Referent | Referent | |||
CXR–SX+ | 4 (3) | 1.45 (0.48–4.39) | 0.51 | 1.64 (0.53–5.11) | 0.39 | |
CXR+SX– | 15 (21) | 19.46 (9.39–40.33) | <0.001 | 23.11 (10.35–51.57) | <0.001 | |
CXR+SX+ | 4 (40) | 38.53 (12.67–117.18) | <0.001 | 34.24 (9.65–121.54) | <0.001 |
*In both analyses, n indicates number of analyzed participants and event indicates number of participants in whom incident TB developed. CXR–, unremarkable chest radiograph, CXR+, abnormal chest radiograph; SX–, no symptoms; SX+, symptoms; TB, tuberculosis. †Symptoms were defined as any of the following: cough>14 d, cough with blood or phlegm, fever, shortness of breath, night sweats. Abnormal chest radiograph was defined as a radiograph with any intra-thorax abnormalities compatible with TB. Abnormal CXR was defined as a CXR with any intra-thorax abnormalities compatible with TB. ‡Adjusted for age, sex, alcohol use, tobacco use, diabetes, hypertension, cardiovascular disease, kidney disease, asthma, TB history and BMI. HIV-positive persons (n = 3) were excluded.
1These authors contributed equally to this article.