Malawi - Malaria Indicator Survey 2017

The 2017 Malawi Malaria Indicator Survey (MMIS), a comprehensive, nationally-representative household survey, was designed in accord with the Roll Back Malaria Monitoring and Evaluation Working Group (RBM-MERG) guidelines. The primary objective of the 2017 MMIS project is to provide up-to-date estimates of basic demographic and health indicators related to malaria. Specifically, the 2017 MMIS collected information on mosquito nets, intermittent preventive treatment of malaria in pregnant women (IPTp), and care seeking behaviour and treatment of fever in children. Young children were also tested for anaemia and for malaria infection. Knowledge of malaria was assessed among interviewed women. The information collected through the 2017 MMIS is intended to assist policy makers and program managers in evaluating and designing programs and strategies for improving the health of the country’s population.

Acronym: 
MIS / MMIS 2017
Type: 
Microdata
Topics: 
Topic not specified
Languages Supported: 
English
Geographical Coverage: 
Malawi
Reference ID: 
MWI_2017_MIS_v01_M
Release Date: 
May 15, 2018

Harvest Source

Harvest Source: 
Microdata

Harvest Source ID

Harvest Source ID: 
9770

Last Updated

Last Updated: 
May 15, 2018
Data Collector(s) Name: 
National Malaria Control Programme
Data Collector(s) Name: 
National Malaria Control Programme
Data Editing: 
Data for the 2017 MMIS were collected through questionnaires programmed onto the CAPI application. The CAPI were programmed by ICF and loaded with the Household, Biomarker, and Woman’s Questionnaires. Using the cloud, the field supervisors transferred data on a daily basis to a central location for data processing in Lilongwe. To facilitate communication and monitoring, each field worker was assigned a unique identification number. ICF provided technical assistance for processing the data using the Censuses and Surveys Processing (CSPro) system for data editing, cleaning, weighting, and tabulation. In the central office, data received from the field teams’ CAPI applications were registered and checked for any inconsistencies. Data editing and cleaning included an extensive range of structural and internal consistency checks. Any anomalies were communicated to team (field) supervisors so that the data processing teams could resolve data discrepancies.
Estimates of Sampling Error: 
The estimates from a sample survey are affected by two types of errors: non-sampling errors and sampling errors. Non-sampling errors are the results of mistakes made in implementing data collection and data processing, such as failure to locate and interview the correct household, misunderstanding of the questions on the part of either the interviewer or the respondent, and data entry errors. Although numerous efforts were made during the implementation of the 2017 Malawi Malaria Indicator Survey (MMIS) to minimize this type of error, non-sampling errors are impossible to avoid and difficult to evaluate statistically.Sampling errors, on the other hand, can be evaluated statistically. The sample of respondents selected in the 2017 MMIS is only one of many samples that could have been selected from the same population, using the same design and expected size. Each of these samples would yield results that differ somewhat from the results of the actual sample selected. Sampling errors are a measure of the variability between all possible samples. Although the degree of variability is not known exactly, it can be estimated from the survey results.Sampling error is usually measured in terms of the standard error for a particular statistic (mean, percentage, etc.), which is the square root of the variance. The standard error can be used to calculate confidence intervals within which the true value for the population can reasonably be assumed to fall. For example, for any given statistic calculated from a sample survey, the value of that statistic will fall within a range of plus or minus two times the standard error of that statistic in 95 percent of all possible samples of identical size and design.If the sample of respondents had been selected as a simple random sample, it would have been possible to use straightforward formulas for calculating sampling errors. However, the 2017 MMIS sample is the result of a multi-stage stratified design, and, consequently, it was necessary to use more complex formulae. Sampling errors are computed in SAS, using programs developed by ICF Macro. These programs use the Taylor linearization method of variance estimation for survey estimates that are means, proportions or ratios.A more detailed description of estimates of sampling errors are presented in Appendix B of the survey final report.
Funding Name, Abbreviation, Role: 
Government of Malawi; United States Agency for International Development
Primary Investigator Name, Affiliation: 
National Malaria Control Programme (NMCP) - Ministry of Health, Government of Malawi
Questionnaires: 
Data was primarily collected using three types of questionnaires: the Household Questionnaire, the Woman’s Questionnaire, and the Biomarker Questionnaire.
Response Rates: 
A total of 3,750 households were selected for the sample, of which 3,735 were occupied at the time of fieldwork. Among the occupied households, 3,729 were successfully interviewed, yielding a total household response rate of 99.8%. In the interviewed households, 3,861 eligible women were identified as eligible for individual interview, and 3,860 women were successfully interviewed, yielding a response rate of 100%.
Sampling Procedure: 
The 2017 MMIS followed a two-stage sample design and allows estimates of key malaria indicators for the country as a whole, for urban and rural areas separately, and for each of the 3 administrative regions in Malawi: Northern, Central, and Southern. The first stage of sampling involved selecting sample points (clusters) from the sampling frame. Enumeration areas (EAs) delineated for the 2008 Population and Housing Census were used as the sampling frame. A total of 150 clusters were selected, with probability proportional to size, from the EAs covered in the 2008 Population and Housing Census. Of these clusters, 60 were in urban areas and 90 in rural areas. Urban areas were oversampled within regions to produce robust estimates for each area or domain. The second stage of sampling involved systematic selection of households. A household listing operation was undertaken in all selected EAs between February and March 2017, and households to be included in the survey were randomly selected from these lists. Twenty-five households were selected from each EA, for a total sample size of 3,750 households. Because of the approximately equal sample sizes in each region, the sample is not self-weighting at the national level. Results shown in this report have been weighted to account for the complex sample design. See Appendix A for additional details on the sampling procedures. All women age 15-49 who were either permanent residents of the selected households or visitors who stayed in the household the night before the survey were eligible to be interviewed. With the parent's or guardian's consent, children age 6-59 months were tested for anaemia and for malaria infection. For further details on sample design, see Appendix A of the final report.
Series Information: 
The Malaria Indicator Survey (MIS) was developed by the Monitoring and Evaluation Working Group (MERG) of Roll Back Malaria, an international partnership developed to coordinate global efforts to fight malaria. A stand-alone household survey, the MIS collects national and regional or provincial data from a representative sample of respondents.
Study Type: 
Demographic and Health Survey [hh/dhs]
Unit of Analysis: 
- Household- Individual- Children age 0-5- Woman age 15-49
Weighting: 
A spreadsheet containing all sampling parameters and selection probabilities was constructed to facilitate the calculation of sampling weights. Household sampling weights and individual sampling weights were obtained by adjusting the previous calculated weight to compensate household nonresponse and individual nonresponse, respectively. These weights were further normalized at the national level to produce unweighted cases equal to weighted cases for both households and individuals at the national level. The normalized weights are valid for estimation of proportions and means at any aggregation levels, but not valid for estimation of totals.

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Use of the dataset must be acknowledged using a citation which would include: - the Identification of the Primary Investigator - the title of the survey (including country, acronym and year of implementation) - the survey reference number - the source and date of download

The 2017 Malawi Malaria Indicator Survey (MMIS), a comprehensive, nationally-representative household survey, was designed in accord with the Roll Back Malaria Monitoring and Evaluation Working Group (RBM-MERG) guidelines. The primary objective of the 2017 MMIS project is to provide up-to-date estimates of basic demographic and health indicators related to malaria. Specifically, the 2017 MMIS collected information on mosquito nets, intermittent preventive treatment of malaria in pregnant women (IPTp), and care seeking behaviour and treatment of fever in children. Young children were also tested for anaemia and for malaria infection. Knowledge of malaria was assessed among interviewed women. The information collected through the 2017 MMIS is intended to assist policy makers and program managers in evaluating and designing programs and strategies for improving the health of the country’s population.

Dataset Info

These fields are compatible with DCAT, an RDF vocabulary designed to facilitate interoperability between data catalogs published on the Web.
FieldValue
Modified Date
2018-05-16
Release Date
December 31,1969
Identifier
cef448c1-c20e-486d-900e-e992621bfe03
License
License Not Specified
Rating: 
0
No votes yet
Reference ID: 
MWI_2017_MIS_v01_M
Acronym: 
MIS / MMIS 2017
Type: 
Languages Supported: 
Access Authority Name, Affiliation, Email: 
The DHS Program, archive@dhsprogram.com, http://www.DHSprogram.com
Disclaimer: 
The user of the data acknowledges that the original collector of the data, the authorized distributor of the data, and the relevant funding agency bear no responsibility for use of the data or for interpretations or inferences based upon such uses.
Response Rates: 
A total of 3,750 households were selected for the sample, of which 3,735 were occupied at the time of fieldwork. Among the occupied households, 3,729 were successfully interviewed, yielding a total household response rate of 99.8%. In the interviewed households, 3,861 eligible women were identified as eligible for individual interview, and 3,860 women were successfully interviewed, yielding a response rate of 100%.
Weighting: 
A spreadsheet containing all sampling parameters and selection probabilities was constructed to facilitate the calculation of sampling weights. Household sampling weights and individual sampling weights were obtained by adjusting the previous calculated weight to compensate household nonresponse and individual nonresponse, respectively. These weights were further normalized at the national level to produce unweighted cases equal to weighted cases for both households and individuals at the national level. The normalized weights are valid for estimation of proportions and means at any aggregation levels, but not valid for estimation of totals.
Estimates of Sampling Error: 
The estimates from a sample survey are affected by two types of errors: non-sampling errors and sampling errors. Non-sampling errors are the results of mistakes made in implementing data collection and data processing, such as failure to locate and interview the correct household, misunderstanding of the questions on the part of either the interviewer or the respondent, and data entry errors. Although numerous efforts were made during the implementation of the 2017 Malawi Malaria Indicator Survey (MMIS) to minimize this type of error, non-sampling errors are impossible to avoid and difficult to evaluate statistically.Sampling errors, on the other hand, can be evaluated statistically. The sample of respondents selected in the 2017 MMIS is only one of many samples that could have been selected from the same population, using the same design and expected size. Each of these samples would yield results that differ somewhat from the results of the actual sample selected. Sampling errors are a measure of the variability between all possible samples. Although the degree of variability is not known exactly, it can be estimated from the survey results.Sampling error is usually measured in terms of the standard error for a particular statistic (mean, percentage, etc.), which is the square root of the variance. The standard error can be used to calculate confidence intervals within which the true value for the population can reasonably be assumed to fall. For example, for any given statistic calculated from a sample survey, the value of that statistic will fall within a range of plus or minus two times the standard error of that statistic in 95 percent of all possible samples of identical size and design.If the sample of respondents had been selected as a simple random sample, it would have been possible to use straightforward formulas for calculating sampling errors. However, the 2017 MMIS sample is the result of a multi-stage stratified design, and, consequently, it was necessary to use more complex formulae. Sampling errors are computed in SAS, using programs developed by ICF Macro. These programs use the Taylor linearization method of variance estimation for survey estimates that are means, proportions or ratios.A more detailed description of estimates of sampling errors are presented in Appendix B of the survey final report.
Time Periods: 
May, 2018
Data Collector(s) Name: 
National Malaria Control Programme
Primary Investigator Name, Affiliation: 
National Malaria Control Programme (NMCP) - Ministry of Health, Government of Malawi
Unit of Analysis: 
- Household- Individual- Children age 0-5- Woman age 15-49
Geographical Coverage: 
Data Classification of a Dataset: 
Series Information: 
The Malaria Indicator Survey (MIS) was developed by the Monitoring and Evaluation Working Group (MERG) of Roll Back Malaria, an international partnership developed to coordinate global efforts to fight malaria. A stand-alone household survey, the MIS collects national and regional or provincial data from a representative sample of respondents.
Sampling Procedure: 
The 2017 MMIS followed a two-stage sample design and allows estimates of key malaria indicators for the country as a whole, for urban and rural areas separately, and for each of the 3 administrative regions in Malawi: Northern, Central, and Southern. The first stage of sampling involved selecting sample points (clusters) from the sampling frame. Enumeration areas (EAs) delineated for the 2008 Population and Housing Census were used as the sampling frame. A total of 150 clusters were selected, with probability proportional to size, from the EAs covered in the 2008 Population and Housing Census. Of these clusters, 60 were in urban areas and 90 in rural areas. Urban areas were oversampled within regions to produce robust estimates for each area or domain. The second stage of sampling involved systematic selection of households. A household listing operation was undertaken in all selected EAs between February and March 2017, and households to be included in the survey were randomly selected from these lists. Twenty-five households were selected from each EA, for a total sample size of 3,750 households. Because of the approximately equal sample sizes in each region, the sample is not self-weighting at the national level. Results shown in this report have been weighted to account for the complex sample design. See Appendix A for additional details on the sampling procedures. All women age 15-49 who were either permanent residents of the selected households or visitors who stayed in the household the night before the survey were eligible to be interviewed. With the parent's or guardian's consent, children age 6-59 months were tested for anaemia and for malaria infection. For further details on sample design, see Appendix A of the final report.
Release Date: 
Tuesday, May 15, 2018
Last Updated Date: 
Tuesday, May 15, 2018
Questionnaires: 
Data was primarily collected using three types of questionnaires: the Household Questionnaire, the Woman’s Questionnaire, and the Biomarker Questionnaire.
Data Editing: 
Data for the 2017 MMIS were collected through questionnaires programmed onto the CAPI application. The CAPI were programmed by ICF and loaded with the Household, Biomarker, and Woman’s Questionnaires. Using the cloud, the field supervisors transferred data on a daily basis to a central location for data processing in Lilongwe. To facilitate communication and monitoring, each field worker was assigned a unique identification number. ICF provided technical assistance for processing the data using the Censuses and Surveys Processing (CSPro) system for data editing, cleaning, weighting, and tabulation. In the central office, data received from the field teams’ CAPI applications were registered and checked for any inconsistencies. Data editing and cleaning included an extensive range of structural and internal consistency checks. Any anomalies were communicated to team (field) supervisors so that the data processing teams could resolve data discrepancies.
Harvest Source: 
Harvest Source ID: 
9770
Citation Text: 
Use of the dataset must be acknowledged using a citation which would include: - the Identification of the Primary Investigator - the title of the survey (including country, acronym and year of implementation) - the survey reference number - the source and date of download
Modified date: 
17666
Study Type: 
Demographic and Health Survey [hh/dhs]
Primary Dataset: 
Yes

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