Table 1 Summary of survey designs and HIV testing for KAIS 2007, KAIS 2012 and KENPHIA 2018
Survey | Survey dates | Design | Interviews | Sample for HIV module | Target population | Sampling frame |
|---|---|---|---|---|---|---|
KAIS 2007 | August-December, 2007 | Two-stage stratified cluster sample, where the first stage included selection of 415 clusters from the NASSEP IV, stratified by district and residency, and for urban areas, by socio-economic status, and the second stage included selection of 25 households within each selected cluster | 9,691 households, 17,940 adults and adolescents aged 15–64 years | Collected 15,853 blood specimens from 9,049 women and 6,804 men | De facto household resident adults and adolescents aged 15–64 years | National Sample Survey and Evaluation Programme (NASSEP) IV developed from 1999 census; comprised of 1,800 clusters |
KAIS 2012 | October 29, 2012 to February 3, 2013 | Two-stage stratified cluster sample, where the first stage included selection of 372 clusters from NASSEP V, stratified by county and residency, and the second stage included selection of 25 households within each selected cluster. For the child sample, every other household was selected | 8,035 households, 13,720 adults and adolescents aged 15–64 years and 1,661 children aged 10–14 | Collected 15,966 blood specimens from 4,832 women and 6,785 men; 2,131 girls and 2208 boys aged 18 months to 14 years | De facto household resident children aged 18 months to 14 years; adults and adolescents aged 15 to 64 years | NASSEP V developed from 2009 census; comprised of 5,360 clusters |
KENPHIA 2018 | June 2018 to February 2019 | Two-stage, stratified cluster sample design where the first stage included selection of 800 clusters from NASSEP V and the second stage included selection of 25 households within each selected cluster. For child sample, every third household was selected | 16,918 households, 30,384 adults and adolescents aged 15–64 years and 2,687 children aged 10–14 | Collected 35,610 blood specimens from 11,726 men and 16,019 women; 4090 boys and 3775 girls | De facto household resident children aged 0–14 years; Adults and adolescents aged 15 to 64 years | NASSEP V |