BackgroundThe Indonesian national Sample Registration System (SRS) is a source of vital statistical information. This article describes the design of the SRS along with an analysis of its performance during its inception period from 2014 to 2017. MethodsThe SRS was assessed according to the following criteria: sample size utilisation, population coverage, and mortality recording procedures/data management.International standard mortality indicators by age, sex, and cause, along with an assessment of data quality, were estimated for 2016. ResultsThe SRS covers a population of 8.6 million in 128 sub-districts ( 103 rural and 25 urban) . Births and deaths are continuously recorded by local community health centres and causes of death are ascertained through verbal autopsy methods. From 2014 to 2017, mortality data completeness ranged from 55-72%, with cardiovascular diseases, diabetes, and chronic obstructive lung diseases, along with tuberculosis and transport accidents, being recorded as leading causes of death. However, as a result of the low level of completeness, total mortality indicators for the SRS population are questionable. DiscussionAs of 2018, system strengthening initiatives to increase data reliability and utility and thus to improve SRS performance and enhance its sustainability are being implemented by a collaboration of academic institutions. It is intended that lessons from the Indonesian SRS can guide vital statistics development programs in other settings.
BACKGROUNDMortality and cause of death data are fundamental to health policy development. Civil Registration and Vital Statistics systems are the ideal data source, but the system is still under development in Indonesia. A national Sample Registration System (SRS) has provided nationally representative mortality data from 128 sub-districts since 2014. Verbal autopsy (VA) is used in the SRS to obtain causes of death. The quality of VA data must be evaluated as part of the SRS data quality assessment.AIMTo assess the strength of evidence used in the assignment of Ischaemic Heart Disease (IHD) as causes of death from VA.METHODSThe sample frame for this study is the 4,070 deaths that had IHD assigned as the underlying cause in the SRS 2016 database. From these, 400 cases were randomly selected. A data extraction form and data entry template were designed to collect relevant data about IHD from VA questionnaires. A standardised categorisation was designed to assess the strength of evidence used to infer IHD as a cause of death. A pilot test of 50 cases was carried out. IBM SPSS software was used in this study.RESULTSStrong evidence of IHD as a cause of death was assigned based on surgery for coronary heart disease, chest pain and two out of: sudden death, history of heart disease, medical diagnosis of heart disease, or terminal shortness of breath. More than half (53%) of the questionnaires contained strong evidence. For deaths outside health facilities, VA questionnaires for male deaths contained acceptable evidence in significantly higher proportions as compared to those for female deaths. (P < 0.001). Nearly half of all IHD deaths were concentrated in the 50-69 year age group (48.40%), and a further 36.10% were aged 70 years or more. Nearly two-thirds of the deceased were male (58.40%). Smoking behaviour was found in 44.11% of IHD deaths, but this figure was 73.82% among males.CONCLUSIONMore than half of the VA questionnaires from the study sample were found to contain strong evidence to infer IHD as the cause of death. Results from medical records such as electrocardiograms, coronary angiographies, and load tests could have improved the strength of evidence and contributed to IHD cause of death diagnosis.
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