In order to track program coverage for a TFP (for example) on a monthly basis, I would use Mark M.s Indirect Method = No. of children attending SCs and OTPs / (Estimated prev' of SAM x Estimated population). i.e. if we had 40 children in therapeutic care during Jan', a total population of 50,000 and U5 population of ~20% (10,000) and a 3% SAM, we would calculate the coverage as 40 / (3% x 10,000) = ~13% coverage during Jan' In light of the above, should one use the total No. of children simply presenting at the end of the month (as a proxy indicator of the no. in the program on any given day), or should one use total end of previous month + all new admissions during the month? If it's the latter, then how do we correct for incidence of illness and expected duration of treatment? I have been reading the link below with regards to calculating program incidence from program prevalence (http://www.en-net.org.uk/question/157.aspx) and wondered if this were a better way of getting a more realistic expected monthly program coverage figure. As has been previously discussed, the actual number of children treated every year is higher than the point prevalence, as this is the prevalence at just one point in time on a certain day and therefore we would naturally expect it to be higher. We cannot simply multiply it by the no. of days in the year however, as we need to factor in illness and duration of treatment. As such, in order to get an incidence for the year, I think I am right in saying it is advised that the point prevalence is multiplied by a correction factor of either 1.6 (60% - according to Andre Briend) or roughly 2 (according to Mark M.) and also multiplied by expected program coverage (lets say 20% as is common for OTPs - see http://www.en-net.org.uk/question/157.aspx). As such, if I were to use the above example again, the expected incidence for the year would be: Popn x U5% x Expected Prev' x CF x ECov' 50,000 x 20% x 3% x 1.6 x 20% = 96 beneficiaries over the course of the year. Assuming we didn't heave a flux in prevalence of MN during the course of the year (just to make the scenario simpler), this would equal an expected 8 children should be treated for acute MN each month over the course of the year. Therefore, if we had 40 children in the OTP at the end of the month (as per the original scinario), this would equate to a 500% program coverage. In light of both the above examples, please can someone advise on how best to calculate proxy program coverage on a monthly basis for TFPs and SFPs. Thank you so much