Patama Vapattanawong1, Pramote Prasartkul. 1. Institute for Population and Social Research, Mahidol University, 999 Phuttamonthon 4 Rd. Salaya, Phuttamonthon, Nakhonpathom 73170, Thailand. prpvp@mahidol.ac.th
Abstract
OBJECTIVE: To estimate the magnitude of under-registration of deaths, by age and sex, in Thailand. METHODS: THE DATA IN THIS STUDY WERE DERIVED FROM TWO SOURCES: the Thai Survey of Population Changes (SPC) 2005-2006, a consecutive multi-round household survey conducted over a 12-month period, and Thailand's vital registration records. SPC death entries for people of all ages were matched to 2005-2006 death records from vital registration. The principles of a dual records system were applied to estimate the magnitude of under-registration of deaths, classified by age and sex, using the Chandrasekaran-Deming formula. FINDINGS: Overall under-registration of deaths during 2005-2006 was 9.00% (95% confidence interval, CI: 8.95-9.05) for males and 8.36% (95% CI: 8.31-8.41) for females. For both males and females, under-registration decreased as age increased. Under-registration was greatest among people of either sex aged 1-4 years, whereas it was < 10% among people 60 years of age and older, both males and females. CONCLUSION: These findings provided correction factors that can be used for adjusting mortality data from the registration system.
OBJECTIVE: To estimate the magnitude of under-registration of deaths, by age and sex, in Thailand. METHODS: THE DATA IN THIS STUDY WERE DERIVED FROM TWO SOURCES: the Thai Survey of Population Changes (SPC) 2005-2006, a consecutive multi-round household survey conducted over a 12-month period, and Thailand's vital registration records. SPC death entries for people of all ages were matched to 2005-2006 death records from vital registration. The principles of a dual records system were applied to estimate the magnitude of under-registration of deaths, classified by age and sex, using the Chandrasekaran-Deming formula. FINDINGS: Overall under-registration of deaths during 2005-2006 was 9.00% (95% confidence interval, CI: 8.95-9.05) for males and 8.36% (95% CI: 8.31-8.41) for females. For both males and females, under-registration decreased as age increased. Under-registration was greatest among people of either sex aged 1-4 years, whereas it was < 10% among people 60 years of age and older, both males and females. CONCLUSION: These findings provided correction factors that can be used for adjusting mortality data from the registration system.
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