Malaria and children: Progress in intervention coverage - Unicef

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spraying rather than insecticide-treated nets, and
therefore national figures for insecticide-treated
net use may be similarly masked.
Progress in malaria intervention coverage is generally
monitored at the national level rather than
among subnational at-risk populations. There are
two important reasons for relying on national-level
estimates of malaria intervention coverage, as this
report does. First, for many countries it is difficult
to accurately define at-risk areas within countries
and subsequently identify households surveyed
within those areas since surveys do not always
geo-code the households or villages where survey
interviews occur. The figures presented in table
A1 reflect estimates based on a climate model
and have limited validity for some countries. Second,
survey sample sizes must be large enough to
offer meaningful results for subnational malarious
areas. This is often difficult, particularly for
Demographic and Health Surveys and Multiple
Indicator Cluster Surveys, because sample sizes
have not been specifically designed to obtain estimates
for populations at risk of malaria.
Notes
1. Roll Back Malaria, MEASURE Evaluation, WHO,
and UNICEF 2006.
2. Roll Back Malaria, MEASURE Evaluation, WHO,
and UNICEF 2006.