Table 2 Assocation with index case CXR appearance with TST positivity in contacts
From: TST positivity in household contacts of tuberculosis patients: a case-contact study in Malawi
Index CXR feature | OR of positive TST in contacts (95% CI) |
|---|---|
Cavities (ref = no cavity) | |
Cavity <4 cm diameter | 7.58 (1.63–34.90) |
Cavity ≥4 cm | 12.25 (2.20–68.24) |
Amount (%) of abnormal lungfield | 1.05 (1.00–1.11) |