Table 1. Demographic characteristics of the ICONA cohort and cohort of commercially-insured US HIV-positive patients in 2010 used for model parameterization.

Abbreviations: Antiretroviral therapy (ART); interquartile range (IQR); United States of America (USA).

	Italy (n = 1,724)	USA (n = 2,268)
Sex
Male	1253 (72.7%)	1,862 (82.1%)
Female	471 (27.3%)	406 (17.9%)
Age in 2010, years (mean)	43.89	44.4
Time on ART
<1 year	52 (3.0%)	154 (6.8%)
1–5 years	893 (51.8%)	958 (42.2%)
>5 years	779 (45.2%)	1156 (51.0%)
Median CD4 cells/mm3 count in 2010 (IQR)	501 (347, 699)	398 (273, 539)