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June 7, 2026Diabetes

1420-P: Temporal Trends and Sociodemographic Disparities in Acute Myocardial Infarction Outcomes among Hospitalized Patients with Diabetes Mellitus: Impact of the COVID-19 Pandemic in California, 2016–2022

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Why the study?

How did the COVID-19 pandemic and sociodemographic factors affect AMI discharges and in-hospital mortality among adults with diabetes?

Population

Adults hospitalized with concurrent diabetes mellitus and acute myocardial infarction in California between…

Design

Cohort

Follow-up

In-hospital

Authors

BRBUDDHIKA RATNASIRIARANURA W.G. RATNASIRILRLeonard E. Ranasinghe

Discussion

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Overview

The COVID-19 pandemic significantly increased AMI admissions and in-hospital mortality among diabetic patients in California, exposing profound sociodemographic disparities across age, race, geography, and insurance status.

Key Points

  • The central aim is to examine trends and disparities in acute myocardial infarction outcomes among hospitalized adults with diabetes from 2016-2022 in California.
  • Population-based retrospective cohort analysis using hospital discharge data from 2016-2022 for adults (≥18 years) with diabetes and acute myocardial infarction.
  • Multivariable logistic regression was employed to estimate adjusted odds ratios with 95% confidence intervals.
  • Discharges increased by 34.8-46.5% during the COVID-19 era compared to 7.1-20.0% pre-pandemic.
  • In-hospital mortality peaked with a 24.4% increase in 2022.
  • The very old adults had an 8.27-fold increase in discharges with an 80.7% attenuation to mortality.

Structured PICO

How did the COVID-19 pandemic and sociodemographic factors affect AMI discharges and in-hospital mortality among adults with diabetes?

P
Population
Adults (≥18 years) hospitalized with concurrent diabetes mellitus and acute myocardial infarction in California between 2016-2022.
C
Comparator
Pre-pandemic era and reference sociodemographic groups (e.g., White populations, Medi-Cal insurance, Central and Coast regions)
O
Outcome
AMI discharges and in-hospital mortalityhard clinical

The COVID-19 pandemic significantly increased AMI admissions and in-hospital mortality among diabetic patients in California, exposing profound sociodemographic disparities across age, race, geography, and insurance status.

Limitations

  • Race and geographic location are likely surrogates for complex socioeconomic disparities that will need additional studies

Cite This Study

RATNASIRI et al. (2026) studied this question.

synapsesocial.com/papers/6a250be87def13d035e1bed5https://doi.org/10.2337/db26-1420-p
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Trends and Disparities in Mortality Due to Non-Insulin Dependent Diabetes Mellitus and Acute Myocardial Infarction: A 23-Year Analysis from 1999 to 20222025
  2. 2Diabetes-associated short-term mortality after first-onset acute myocardial infarction: age- and residence-specific patterns in an underserved region2026
  3. 3Trends and Disparities in Mortality due to Diabetes Mellitus and Sepsis in the US Adults: 1999–20232025 · 6 citations
  4. 4Trends and disparities in mortality from comorbid non-insulin-dependent diabetes mellitus and stroke (1999-2022): A retrospective analysis2025
  5. 5Anemia and diabetes related mortality in older adults: Geographic and temporal trends in the US, 1999-20232025