Skip to main content

Table 1 Baseline characteristics of index patients

From: TST positivity in household contacts of tuberculosis patients: a case-contact study in Malawi

Index case characteristics N = 34
Male sex, n (%) 20 (58.8%)
Age in years, median (IQR) 31 (25–34)
Body mass index in kg/m2, median (IQR) 19.2 (17.3–20.4)
Duration of cough in weeks, median (IQR) 8 (4–12)
Smoker, n (%) 5 (14.7%)
Peripheral blood WBC count in cells/μl median (IQR) 6.6 (5.4–7.6)
HIV positive, n (%) 24 (72.7%)
CD4 count of HIV positive patients, median (IQR) 173 (115–360)
HIV positive patients on ART at baseline, n (%) 8 (38.1%)
Cavities on baseline CXR, n (%)
No cavity 12 (36.4%)
Cavity <4 cm diameter 12 (36.4%)
Cavity ≥4 cm diameter 9 (27.3%)
Amount (%) of abnormal lungfield on CXR, median (IQR) 25 (18–35)
Index smear status, n (%)
+ 2 (5.9%)
++ 2 (5.9%)
+++ 30 (88.2%)
Days-to-positivity on sputum culture, median (IQR) 4 (3.5–6.5)
%LB + AFB count, median (IQR) 28.3 (17.1–48.0)