Kenya Aids Indicator Survey 2012, KAIS 2012
Kenya, 2012 - 2013
Kenya National Bureau of Statistics, (KNBS), National AIDS and STI Control Programme (NASCOP)
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Identification
Survey ID Number
KEN-KNBS-KAIS-2014-v1.0
Title
Kenya Aids Indicator Survey 2012, KAIS 2012
Subtitle
KAIS 2012
Country
| Name | Country code |
|---|---|
| KENYA | KEN |
Study type
Other Household Health Survey [hh/hea]
Series Information
The Government of Kenya conducted the second AIS (KAIS 2012) among children and adults aged 18 months to 64 years to evaluate HIV care, treatment, and prevention programmes and to inform new strategies to respond to the HIV epidemic in Kenya.
Abstract
From October 2012 to February 2013, the Government of Kenya conducted the second AIS (KAIS 2012) among children and adults aged 18 months to 64 years to evaluate HIV care, treatment, and prevention programmes and to inform new strategies to respond to the HIV epidemic in Kenya.
KAIS 2012 differed from KAIS 2007 by including:
Children aged 18 months to 14 years in the sample to estimate the number of HIV-infected • children and the number in need of HIV treatment.
A paediatric module to describe testing and clinical characteristics of children aged 18 months • to 14 years.
A behavioural interview for young adolescents aged 10 to14 years. •
An expanded behavioural module on adult HIV risk behaviour, including transactional sex, drug • use, anal sex, and correct and consistent condom use.
An opportunity for survey participants to receive home-based testing and counselling (HBTC) to • learn their HIV status at the conclusion of the survey and, for persons found to be HIV-infected, in-home measurement of CD4+ T-cell counts to immediately determine treatment needs.
Viral load testing for all HIV positive samples. •
The specific objectives of KAIS 2012 were to:
Determine HIV prevalence among persons aged 18 months to 64 years. •
Describe the socioeconomic and behavioural risk factors associated with HIV infection. •
Determine the incidence of HIV infection among persons aged 18 months to 64 years. •
Determine need and use of HIV care and treatment services among HIV-infected persons aged • 18 months to 64 years.
Determine the use of HIV prevention services among persons aged 18 months to 64 years.•
KAIS 2012 differed from KAIS 2007 by including:
Children aged 18 months to 14 years in the sample to estimate the number of HIV-infected • children and the number in need of HIV treatment.
A paediatric module to describe testing and clinical characteristics of children aged 18 months • to 14 years.
A behavioural interview for young adolescents aged 10 to14 years. •
An expanded behavioural module on adult HIV risk behaviour, including transactional sex, drug • use, anal sex, and correct and consistent condom use.
An opportunity for survey participants to receive home-based testing and counselling (HBTC) to • learn their HIV status at the conclusion of the survey and, for persons found to be HIV-infected, in-home measurement of CD4+ T-cell counts to immediately determine treatment needs.
Viral load testing for all HIV positive samples. •
The specific objectives of KAIS 2012 were to:
Determine HIV prevalence among persons aged 18 months to 64 years. •
Describe the socioeconomic and behavioural risk factors associated with HIV infection. •
Determine the incidence of HIV infection among persons aged 18 months to 64 years. •
Determine need and use of HIV care and treatment services among HIV-infected persons aged • 18 months to 64 years.
Determine the use of HIV prevention services among persons aged 18 months to 64 years.•
Kind of Data
Sample survey data [ssd]
Unit of Analysis
Urban and Rural areas, Households, children aged 18 months - 14 years, Females (15 to 64) Males (15 to 64)
Version
Version Description
Version 1.0: Cleaned validated data, it is the set that was used to generate basic tables for KAIS results
Version Date
2013-07
Version Notes
Data cleaning was conducted using SAS version 9.3 (SAS Institute Inc., Cary, North Carolina, USA). Laboratory data were cleaned and merged with the final questionnaire database using unique specimen barcodes and study identification numbers. It was the first version (1.0) of cleaned data used to produce tables for KAIS 2012 basic report
Scope
Notes
Household: Household census, Parental survivorship,Household characteristics and possessions, Support for orphans and vulnerable children
Adults Male/Female (15-64 years): Socio-demographic characteristics ,Reproduction, fertility, and family planning, Male circumcision, Marriage and sexual history, Drug use, HIV knowledge, attitudes, and behaviours, HIV testing, Access to HIV prevention, care and treatment services, Tuberculosis and other health issues Blood safety and injection and Migration
Children (10-14 years): Socio-demographic characteristics, HIV knowledge, attitudes, and perceptions; Sexual activity (for children aged 12- 14 years only); HIV testing; Male circumcision Alcohol and drug use; Participation in HIV prevention interventions; HIV stigma
Adults Male/Female (15-64 years): Socio-demographic characteristics ,Reproduction, fertility, and family planning, Male circumcision, Marriage and sexual history, Drug use, HIV knowledge, attitudes, and behaviours, HIV testing, Access to HIV prevention, care and treatment services, Tuberculosis and other health issues Blood safety and injection and Migration
Children (10-14 years): Socio-demographic characteristics, HIV knowledge, attitudes, and perceptions; Sexual activity (for children aged 12- 14 years only); HIV testing; Male circumcision Alcohol and drug use; Participation in HIV prevention interventions; HIV stigma
Coverage
Geographic Coverage
National Regional Rural/Urban
Universe
All members in selected Households Adult Male/Female (15-64 years) Children (10-14 years)
Producers and sponsors
Primary investigators
| Name | Affiliation |
|---|---|
| Kenya National Bureau of Statistics, (KNBS) | Ministry of Devolution and Planning |
| National AIDS and STI Control Programme (NASCOP) | Ministry of Health |
Producers
| Name | Affiliation | Role |
|---|---|---|
| President's Emergency Plan for AIDS Relief | US Government | Techincal Assistamnce |
| University of California San Francisco | Techincal Assistamnce in data processing | |
| The World Bank | Techincal Assistamnce |
Funding Agency/Sponsor
| Name | Abbreviation | Role |
|---|---|---|
| President's Emergency Plan for AIDS Relief | PEPFAR | Funding |
| Joint United Nations Team on HIV and AIDS | JUNHA | Funding |
| The Global fund | JUNHA | Funding |
| World Bank | WB | Funding |
| Japanese International Co operation Agency | JICA | Funding |
Other Identifications/Acknowledgments
| Name | Affiliation |
|---|---|
| National Council for Population and Development (NCPD) | Ministry of Devolution and Planning |
| U.S. Centers for Disease Control and Prevention (CDC) | United Nations |
| Kenya Medical Research Institute (KEMRI) | Ministry of Health |
| United States Agency for International Development (USAID) | Us Government |
| Liverpool Voluntary Counselling and Testing (LVCT) |
Sampling
Sampling Procedure
The survey used two-stage stratified cluster sampling where the first stage selected 372 out of 1,800 clusters from the Kenya National Bureau of Statistics (KNBS) household-based sampling frame and the National Sample Survey and Evaluation Programme (NASSEP V) [2] using probability proportional to size (PPS) method. The second stage randomly selected a sample of 25 households in each cluster from a roster of households in the cluster using systematic random sampling.
Households that were eligible for the child sample (individuals aged 18 months to 14 years) were pre-selected during the sampling phase. During data collection, if a pre-selected household did not have an eligible child, the next pre-selected household was visited until all pre-selected households in the cluster with at least one eligible child were identified.
The sample size was calculated to provide representative national, regional, urban and rural estimates of HIV infection among adults and adolescents aged 15 to 64 years and national HIV prevalence estimates for children aged 18 months to 14 years. The target sample size was 23,896 for women and men aged 15 to 64 years and 8,226 for children aged 18 months to14 years. Table 1 below shows the distribution of sampled clusters and households by region.
Households that were eligible for the child sample (individuals aged 18 months to 14 years) were pre-selected during the sampling phase. During data collection, if a pre-selected household did not have an eligible child, the next pre-selected household was visited until all pre-selected households in the cluster with at least one eligible child were identified.
The sample size was calculated to provide representative national, regional, urban and rural estimates of HIV infection among adults and adolescents aged 15 to 64 years and national HIV prevalence estimates for children aged 18 months to 14 years. The target sample size was 23,896 for women and men aged 15 to 64 years and 8,226 for children aged 18 months to14 years. Table 1 below shows the distribution of sampled clusters and households by region.
Response Rate
Participation rates in KAIS 2012 were high Of the 9,300 households sampled, 9,189 (99%) were eligible for the survey, and 87% of eligible households completed household-level surveys. Rural households (89%) had higher household interview response rates than urban households (85%).
Of 16,383 eligible persons aged 15-64 years, 13,720 (84%) completed adult interviews. Response rates for adult interviews were higher among women (89%) compared to men (77%). Response rates for blood draw were similar among women and men (85% vs. 84%). Urban residents were less likely to provide a blood specimen compared to rural residents (81% vs. 87%). There were a total of 2,131 children aged 10-14 years eligible for an interview; of those, 80% completed interviews. The blood response rate for all children aged 18 months to 14 years was 69%.
Of 16,383 eligible persons aged 15-64 years, 13,720 (84%) completed adult interviews. Response rates for adult interviews were higher among women (89%) compared to men (77%). Response rates for blood draw were similar among women and men (85% vs. 84%). Urban residents were less likely to provide a blood specimen compared to rural residents (81% vs. 87%). There were a total of 2,131 children aged 10-14 years eligible for an interview; of those, 80% completed interviews. The blood response rate for all children aged 18 months to 14 years was 69%.
Weighting
The sampling weights were computed to correct for unequal probability of selection to provide survey results that were representative of the larger population, and to adjust for non-response. All results presented in thHousehold weighte report are based on weighted estimates, except for the survey response rates .
Household weight variable used to weight household data
Household weight variable used to weight household data
Data Collection
Dates of Data Collection
| Start | End |
|---|---|
| 2012-11 | 2013-02 |
Data Collection Mode
Computer Assisted Personal Interview [capi]
Supervision
Data collection teams were regularly supervised by teams of national supervisors with representation from different KAIS 2012 collaborating institutions. These supervision teams visited the field teams across the country to deliver survey supplies, perform quality checks on data completeness, provide technology support, assess mobilization efforts, and help address challenges to data collection. Supervision reports were circulated to the KAIS 2012 technical working group for response to any issues.
Data Collection Notes
Data collection teams were regularly supervised by teams of national supervisors with representation from different KAIS 2012 collaborating institutions. These supervision teams visited the field teams across the country to deliver survey supplies, perform quality checks on data completeness, provide technology support, assess mobilization efforts, and help address challenges to data collection. Supervision reports were circulated to the KAIS 2012 technical working group for response to any issues.
Data Collectors
| Name | Abbreviation | Affiliation |
|---|---|---|
| Kenya National Bureau of Statistics | KNBS | Ministry of Devolution and Planning |
| National AIDS and STI Control Programme | NASCOP | Ministry of Health |
Questionnaires
Questionnaires
The household questionnaire provided information on all eligible members within the household. The household questionnaire also collected data on the support of orphans and vulnerable children within the household, the physical and sanitary conditions of the home, household possessions and household food security. Adult questionnaires (male and female) to persons aged 15 to 64 years that collected information on demographic characteristics; reproductive and children's health; sexual behaviour; HIV-related knowledge and attitudes; HIV testing; injections and blood transfusions and donations; circumcision (for men); non-prescription drug use; and migration. Children aged 10 to 14 years were administered a questionnaire that collected information on demographic characteristics; knowledge about and attitudes toward HIV; sexual behaviour; HIV prevention, care, and treatment services; and alcohol and drug use.
Data were recorded on portable net book computers (Mirus Innovations, Mississauga, Ontario, Canada), using software specifically designed for the KAIS questionnaires.
The survey was conducted in various languages but the main ones were Swahili and English.
Data were recorded on portable net book computers (Mirus Innovations, Mississauga, Ontario, Canada), using software specifically designed for the KAIS questionnaires.
The survey was conducted in various languages but the main ones were Swahili and English.
Data Processing
Data Editing
Data cleaning was conducted using SAS version 9.3 (SAS Institute Inc., Cary, North Carolina, USA). Laboratory data were cleaned and merged with the final questionnaire database using unique specimen barcodes and study identification numbers.
Other Processing
All field data collected were transmitted to a KAIS 2012 central server using a secure virtual private network and stored in Microsoft SQL Server 2008 (Microsoft Corporation, Redmond, Washington, USA). Where wireless networks were not available, supervisors uploaded the data manually on secure data cards during regular supervision visits
Access policy
Access authority
| Name | Affiliation | URL | |
|---|---|---|---|
| Director General | KNBS | directorgeneral@knbs.or.ke | www.knbs.or.ke |
Contacts
| Name | Affiliation | URL | |
|---|---|---|---|
| Director General | Kenya National Bureau of Statistics | directorgeneral@knbs.or.ke | www.knbs.or.ke |
Confidentiality
Data shall be used for statistical purposes only and not for investigation of specific individuals or organizations or any other purpose.
No attempt shall be made to produce links among datasets provided by KNBS, or among data from the KNBS and other datasets with a view to
identifying individuals or organizations.
Access conditions
a. Data and other materials provided by KNBS shall not be redistributed or sold to other individuals, institutions, or organizations without written authority from the Director General.
b. Data shall be used for statistical purposes only and not for investigation of specific individuals or organizations or any other purpose.
c. No attempt shall be made to produce links among datasets provided by KNBS, or among data from the KNBS and other datasets with a view to identifying individuals or organizations.
d. Any books, articles, conference papers, theses, dissertations, reports, or other publications that employ data obtained from the KNBS Data Archive will cite the source of data.
e. Requests for micro-data shall be serviced upon completion of and submission of the Application Form for Microdata.
b. Data shall be used for statistical purposes only and not for investigation of specific individuals or organizations or any other purpose.
c. No attempt shall be made to produce links among datasets provided by KNBS, or among data from the KNBS and other datasets with a view to identifying individuals or organizations.
d. Any books, articles, conference papers, theses, dissertations, reports, or other publications that employ data obtained from the KNBS Data Archive will cite the source of data.
e. Requests for micro-data shall be serviced upon completion of and submission of the Application Form for Microdata.
Citation requirements
The data users shall acknowledge that any available intellectual property rights,
including copyright in the data are owned by the KNBS. The data user or client is
encouraged to provide KNBS with a copy of such report, paper or article.
including copyright in the data are owned by the KNBS. The data user or client is
encouraged to provide KNBS with a copy of such report, paper or article.
Disclaimer and copyrights
Disclaimer
In no event shall KNBS become liable to users of its data, or any other party, for any loss or damages, consequential or otherwise, including but not limited to time, money,
or goodwill, arising from the use, operation or modification of the data. In using these data, users further agree to indemnify, defend, and hold harmless KNBS for any and
all liability of any nature arising out of or resulting from the lack of accuracy or correctness of the data, or the use of the data.
or goodwill, arising from the use, operation or modification of the data. In using these data, users further agree to indemnify, defend, and hold harmless KNBS for any and
all liability of any nature arising out of or resulting from the lack of accuracy or correctness of the data, or the use of the data.
Copyright
(c) 2013, Kenya National Bureau of Statistics
Metadata production
DDI Document ID
DDI-KEN-KNBS-KAIS-2014-V01
Producers
| Name | Abbreviation | Affiliation | Role |
|---|---|---|---|
| KENYA NATIONAL BUREAU OF STATISTICS | KNBS | MINISTRY OF DEVOLUTION AND PLANNING | Documentation of the study |
Date of Metadata Production
2014-05-15
DDI Document version
Version 1.0 (May,2014), it is the intial documentation of the study