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BMC Public Health
Published in: BMC Public Health 1/2015

Open Access 01-12-2015 | Research article

Reliable mortality statistics for Turkey: Are we there yet?

Authors: Raziye Özdemir, Chalapati Rao, Zeliha Öcek, Gönül Dinç Horasan

Published in: BMC Public Health | Issue 1/2015

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Abstract

Background

The Turkish government has implemented several reforms to improve the Turkish Statistical Institute Death Reporting System (TURKSTAT-DRS) since 2009. However, there has been no assessment to evaluate the impact of these reforms on causes of death statistics. This study attempted to analyse the impact of these reforms on the TURKSTAT-DRS for Turkey, and in the case of Izmir, one of the most developed provinces in Turkey.

Methods

The evaluation framework comprised three main components each with specific criteria. Firstly, data from TURKSTAT for Turkey and Izmir for the periods 2001–2008 and 2009–2013 were assessed in terms of the following dimensions that represent quality of mortality statistics (a. completeness of death registration, b. trends in proportions of deaths with ill-defined causes). Secondly, the quality of information recorded on individual death certificates from Izmir in 2010 was analysed for a. missing information, b. timeliness of death notifications and c. characteristics of deaths with ill-defined causes. Finally, TURKSTAT data were analysed to estimate life tables and summary mortality indicators for Turkey and Izmir, as well as the leading causes-of-death in Turkey in 2013.

Results

Registration of adult deaths in Izmir as well as at the national level for Turkey has considerably improved since the introduction of reforms in 2009, along with marked decline in the proportions of deaths assigned ill-defined causes. Death certificates from Izmir indicated significant gaps in recorded information for demographic as well as epidemiological variables, particularly for infant deaths, and in the detailed recording of causes of death. Life expectancy at birth estimated from local data is 3–4 years higher than similar estimates for Turkey from international studies, and this requires further investigation and confirmation.

Conclusion

The TURKSTAT-DRS is now an improved source of mortality and cause of death statistics for Turkey. The reliability and validity of TURKSTAT data needs to be established through a detailed research program to evaluate completeness of death registration and validity of registered causes of death. Similar evaluation and data analysis of mortality indicators is required at regular intervals at national and sub-national level, to increase confidence in their utility as primary data for epidemiology and health policy.
Appendix
Available only for authorised users
Footnotes
1
Details obtained through personal communication between the author (RO) and the Izmir Provincial Health Directorate, April 2015
 
2
This estimate of 91 % was observed from ‘Completeness’ tab for Turkey on the ‘GBD Mortality data visualization’ webpage; available from http://​vizhub.​healthdata.​org/​mortality/​; accessed on 26 Apr 2015
 
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Metadata
Title
Reliable mortality statistics for Turkey: Are we there yet?
Authors
Raziye Özdemir
Chalapati Rao
Zeliha Öcek
Gönül Dinç Horasan
Publication date
01-12-2015
Publisher
BioMed Central
Published in
BMC Public Health / Issue 1/2015
Electronic ISSN: 1471-2458
DOI
https://doi.org/10.1186/s12889-015-1904-1

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