The clients remaining on ART (TROA) rate indicator monitors the total number of clients started on life-long ART during a specific period. The numerator is ‘total clients remaining on ART at end of the month’ and the denominator ‘estimated number of PLHIV’. Total clients remaining on ART includes the sum of all clients on treatment including newly initiated patients and patients already on treatment. The methodology to determine the estimated number of PLHIV at district was based on averaging three methods; namely, antenatal care (ANC), Human Sciences Research Council (HSRC) and TROA, as recommended by the Strategic Information team on district level PLHIV estimates, since there is no model for district estimates.