Excess Deaths in Mexico City and New York City During the COVID-19 Pandemic, March to August 2020.

Abstract

Objectives. To estimate all-cause excess deaths in Mexico City (MXC) and New York City (NYC) during the COVID-19 pandemic. Methods. We estimated expected deaths among residents of both cities between March 1 and August 29, 2020, using log-linked negative binomial regression and compared these deaths with observed deaths during the same period. We calculated total and age-specific excess deaths and 95% prediction intervals (PIs). Results. There were 259 excess deaths per 100\u2009000 (95% PI\u2009=\u2009249, 269) in MXC and 311 (95% PI\u2009=\u2009305, 318) in NYC during the study period. The number of excess deaths among individuals 25 to 44 years old was much higher in MXC (77 per 100\u2009000; 95% PI\u2009=\u200969, 80) than in NYC (34 per 100\u2009000; 95% PI\u2009=\u200930, 38). Corresponding estimates among adults 65 years or older were 1263 (95% PI\u2009=\u20091199, 1317) per 100\u2009000 in MXC and 1581 (95% PI\u2009=\u20091549, 1621) per 100\u2009000 in NYC. Conclusions. Overall, excess mortality was higher in NYC than in MXC; however, the excess mortality rate among young adults was higher in MXC. Public Health Implications. Excess all-cause mortality comparisons across populations and age groups may represent a more complete measure of pandemic effects and provide information on mitigation strategies and susceptibility factors. (Am J Public Health. Published online ahead of print September 9, 2021: e1-e4. https://doi.org/10.2105/AJPH.2021.306430).