Children in need of special protection data is minimal in the five AFA districts sampled.
24 Two of the districts sampled in our surveys were located in these regions.
Six, out of the ten districts sampled, were part of the PPM program.
In the districts sampled for UIC determination (Additional file 1), 85.3% (95% CI: 84.9 - 85.8%) had I-salt suggesting that they were a relatively un-biased sub-sample.
Over half of the districts sampled in Tanzania explicitly discussed the use of a newly introduced mechanism, OPRAS, to define expectations and assess performance.
In each AFA district, sampling covered two communes.
In each district, sampling interval was calculated by dividing the total district population by the number of clusters [ 45].
However, malaria transmission intensity is based on surveys and rarely are all locations within a district sampled for prevalence of malaria parasitaemia in children.
The ethnic mosaic in the study districts makes sampling a challenge and we cannot claim to have reached saturation in terms of ethnic diversity.
Each of the seven district sampling blocks formed should comprise around 14% of the workforce.
