Volume 44 - Article 30 | Pages 719–758

Mexican mortality 1990‒2016: Comparison of unadjusted and adjusted estimates

By Dana Glei, Andres Barajas Paz, José Manuel Aburto, Magali Barbieri

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Date received:15 Jun 2020
Date published:07 Apr 2021
Word count:6399
Keywords:data quality, demography, Human Mortality Database (HMD), life expectancy, life tables, Mexico, mortality
DOI:10.4054/DemRes.2021.44.30
Additional files:DemRes_ 44-30_Supplemental-Information (zip file, 1 MB)
 DemRes_44-30_Supplementary material (pdf file, 215 kB)
 

Abstract

Background: Vital statistics registration and census counts for Mexico may be incomplete, resulting in unreliable mortality indicators.

Objective: We evaluate unadjusted mortality estimates for Mexico during 1990‒2016 and compare them with other published estimates for Mexico and with the historical mortality patterns observed among the 41 Human Mortality Database (HMD) populations. Finally, we investigate the effect of various adjustments on estimated life expectancy.

Methods: We apply the HMD methodology to the official vital statistics and census counts to construct unadjusted life table series for Mexico. Then we make adjustments by substituting revised estimates for child mortality and by fitting a log-quadratic model.

Results: Adjusted estimates of mortality below age 5 derived by the UN Inter-agency Group for Child Mortality Estimation (IGME) are up to 48% higher than our unadjusted estimates. Even in 2015, the IGME-adjusted estimates of child mortality remain at least 10% higher than our unadjusted estimates. Our analysis suggests that there may also be underestimation of mortality at both prime adult ages and the oldest ages. The log-quadratic model produced the lowest estimates of life expectancy at birth (3.8‒4.4 years lower than the unadjusted values in 1995).

Conclusions: Unadjusted estimates are likely to underestimate mortality in Mexico, even in recent years. Adjustments may improve the accuracy of the mortality estimates, but we cannot adjudicate which set of adjusted estimates is closest to reality.

Contribution: This is the first time the HMD methodology has been applied to the Mexican data.

Author's Affiliation

Dana Glei - Georgetown University, United States of America [Email]
Andres Barajas Paz - Heriot-Watt University, United Kingdom [Email]
José Manuel Aburto - University of Oxford, United Kingdom [Email]
Magali Barbieri - Institut National d'Études Démographiques (INED), France [Email]

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