Table 3 Relationship of non-radiological features of index cases to TST positivity in contacts
From: TST positivity in household contacts of tuberculosis patients: a case-contact study in Malawi
Index case characteristics | OR of positive TST in contact (95% CI) | |
|---|---|---|
Univariate analysis | Multivariate analysisa | |
Male sex | 4.05 (1.26–13.04) | 7.62 (1.14–50.77) |
Age in years | 0.96 (0.88–1.04) | - |
Body mass index in kg/m2 | 1.06 (0.84–1.34) | - |
Duration of cough in weeks | 1.04 (0.93–1.16) | - |
Smoker | 0.75 (0.11–4.92) | - |
Peripheral blood WBC | 1.44 (1.03–2.01) | 1.73 (1.01–2.94) |
HIV negative | 8.25 (0.97–69.87) | 25 (1.26–100) |
Days to positivity on sputum culture | 0.95 (0.80–1.13) | 0.96 (0.67–1.38) |
%LB + AFB count | 0.97 (0.95–1.00) | 1.02 (0.97–1.06) |