Title of Survey | Conducted by | Coverage | Sampling frame & population size | Sampling method | Sample size (n) |
---|---|---|---|---|---|
Nigeria Demographic and Health Survey 1999 | National Population Commission Abuja, Nigeria and ORC Macro Calverton, Marylands, USA | National (36 states and a federal capital territory) | 1999 census with a population of 88,992,220 | Two-stage stratified cluster design | 8,199 |
Nigeria Demographic and Health Survey 2003 | National Population Commission Abuja, Nigeria and ORC Macro Calverton, Marylands, USA | National (36 states and a federal capital territory) | 1991 census with a population of 88,992,220 | Two-stage stratified cluster design | 7,620 |
Nigeria Demographic and Health Survey 2008 | National Population Commission Abuja, Nigeria and ORC Macro Calverton, Marylands, USA | National (36 states and a federal capital territory) | 2006 census with a population of 140,431,790 | Two-stage stratified cluster design | 33,385 |
Nigeria Demographic and Health Survey 2013 | National Population Commission Abuja, Nigeria and ICF International, Rockville, USA | National (36 states and a federal capital territory) | 2006 census with a population of 140,431,790 | Three-stage stratified cluster design | 38,948 |