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Proportion of person-time contributed to each antiretroviral therapy (ART), CD4 count, and HIV RNA category by calendar period among patients with HIV in routine clinical care. Person-time categories are based on follow-up of the entire Centers for AIDS Research Network of Integrated Clinical Systems HIV population in routine clinical care and were time updated to account for changes in (A) ART status, (B) CD4 count, and (C) HIV RNA values.
