Mortality measures from sample-based surveillance: evidence of the epidemiological transition in Viet Nato/Evaluations de la mortalite a partir de la surveillance basee sur l'echantilonnage: les preuves de la transition epidemiologique au Viet Nam/Mortalidad medida por la vigilancia basada en muestras: pruebas de la transicion epidemiologica en Viet Nam

• Published in: Bulletin of the World Health Organization 2012-10, Vol.90 (10), p.764
• Main Authors: Hoa, Nguyen Phuong, Rao, Chalapati, Hoy, Damian G, Hinh, Nguyen Duc, Chuc, Nguyen Thi Kim, Ngo, Duc Anh
• Format: Article
• Language: English
• Subjects: Epidemiologic methods; Health transition; Mortality; Vietnam
• ISSN: 0042-9686; 1564-0604
• DOI: 10.2471/BLT.11.100750

Objective To report methods and results from a national sample mortality surveillance programme implemented in Viet Nato in 2009. Methods A national sample of 192 communes located in 16 provinces and covering a population of approximately 2.6 million was selected using multi-stage cluster sampling. Deaths for 2009 were identified from several local data sources. Record reconciliation and capture-recapture methods were used to compile data and assess completeness of the records. Life tables were computed using reported and adjusted age-specific death rates. Each death was followed up by verbal autopsy to ascertain the probable cause(s) of death. Underlying causes were certified and coded according to international guidelines. Findings A total of 9921 deaths were identified in the sample population. Completeness of death records was estimated to be 81%. Adjusted life expectancies at birth were 70.4 and 78.7 years for males and females, respectively. Stroke was the leading cause of death in both sexes. Other prominent causes were road traffic accidents, cancers and HIV infection in males, and cardiovascular conditions, pneumonia and diabetes in females. Conclusion Viet Nam is undergoing the epidemiological transition. Although data are relatively complete, they could be further improved through strengthened local collaboration. Medical certification for deaths in hospitals, and shorter recall periods for verbal autopsy interviews would improve cause of death ascertainment. Objectif Rapporter les methodes et les resultats d'un programme national de surveillance de la mortalite basee sur l'echantirlonnage, mis en place au Viet Nam en 2009. Methodes Un echantillon national de 192 communes situees dans 16 provinces et couvrant une population d'environ 2,6 millions de personnes a ete selectionne par echantillonnage en grappes a plusieurs degres. Pour l'annee 2009, les deces ont ete identifies surra base de plusieurs sources d'informations locales. Le recoupement des dossiers ainsi que des methodes de capture-recapture ont ete utilises pour compiler les informations et evaluer l'exhaustivite des dossiers. Les tables de mortalite ont ete calculees en utilisant les taux de mortalite presentes et ajustes par age. Chaque deces a ete suivi d'une autopsie orale pour determiner la ou les causes probables de la mort. Les causes sousjacentes ont ete certifiees et codees selon les normes internationales. Resultats Un nombre total de 9921 deces a ete identifie dans la populat