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Table 1 Baseline characteristics of patients initiated on ART

From: Joint modelling of longitudinal and time-to-event data: an illustration using CD4 count and mortality in a cohort of patients initiated on antiretroviral therapy

CharacteristicWomen (N= 2557)Men (N= 1457)p-value
Age (years), median (IQR) a32.0 (28.0-39.0)35.0 (30.0-41.0)<0.001
Site, n (%):  <0.001
Rural1507 (58.9)692 (47.5) 
Urban1050 (41.1)765 (52.5) 
Prevalent TB?, n (%):  <0.001
No2052 (80.3)990 (67.9) 
Yes505 (19.7)467 (32.1) 
Body mass index (kg/m2),
median (IQR) b24.2 (21.0-28.1)21.0 (19.0-23.2)0.415
CD4 count (cells/ μL),   
median (IQR) c132.0 (69.0-202.0)113.0 (47.0-177.0)<0.001
CD8 count (cells/ μL),   
median (IQR) d818.5 (533.5-1197.5)736.0 (462.0-1123.0)<0.001
Viral load (log10 copies/ml),   
mean (SD) e:4.9(0.9)5.0 (0.9)<0.001
CD4:CD8 ratio, median(IQR) f0.2 (0.1-0.2)0.1 (0.1-0.2)<0.001
  1. a4 patients had missing age, b237 patients had missing BMI, c382 patients had missing CD4 count, d1936 patients had missing baseline CD8 count, e488 patients had missing baseline viral load, f1929 patients had missing CD4:CD8 ratio