Characteristic | Baseline 2006 | MIS 3R 2007 |
---|---|---|
Scope of the survey | Surveys in Amhara, Oromia and SNNP regions only | This is a sub-sample of the National MIS comprising 3 regions (Amhara, Oromia and SNNPR). |
Dates of survey | December 2006 to January 2007 | October through December 2007 |
Sampling frame | Sampling frame included only kebeles defined by the Regional Health Bureaus as malarious by expert knowledge. | Nationally representative sample stratified by three domains: areas below 1,500 m, rural areas between 1,500 m and 2,500 m, and urban areas between 1,500 m and 2,500 m |
Primary Sampling Unit | Defined as kebeles (the smallest administrative unit with an average population of 5,000) selected with probability proportional to population size | Defined as census enumeration areas (EA) with each cluster comprising an estimated population of 200 households. |
Sampling of clusters | 5 State-teams per kebele selected randomly from list of state-teams in the selected kebeles. | EA selected randomly with probability proportional to population size of strata. |
Sampling of households | 5 households per state team using the random-walk method. | Simple random sample of all households in EA selected after mapping all households using personal digital assistants (PDAs) with global positioning system (GPS) capability |
Sample size | 224 clusters of 25 households | 245 clusters of 25 households |