Forecasting Alzheimer’s Disease-related Mortality with Atrial Fibrillation Using ARIMA Modeling: U.S. Trends, 1999-2023
Ali Zubair1, Aleena Sharif2, Husnain Ahmad3, Minahil Zaheer4, Zohra Jabbar5, Affan Mudassar1, Muhammad Haseeb Ahmad6, Dr wishad Waris1, Sara Sharif1, Syeda Malaika Mushtaq1
1Sheikh Zayed Medical College, Rahim Yar Khan, 2Sheikh Zayed Hospital, Lahore, 3Shalamar Medical and Dental College, Lahore, 4Hazrat Barisarkar Medical and Dental College, Islamabad, 5Shahida Islam Medical College, Lodhran, 6Sheikh Zayed Medical College, Rahim Yar Khan,Pakistan
Objective:
To examine disparities in Atrial Fibrillation related mortality among AD patients by sex, race/ethnicity, and geographic region, using national trends and future projections
Background:
Atrial Fibrillation has been linked to increased risk of dementia such as Alzheimer's Disease (AD) due to cerebral hypoperfusion, increased systemic inflammation and even impaired ability of brain to remove amyloid-beta plaques.
Design/Methods:

Age-adjusted mortality rates (AAMRs) per 100,000 in adults (65+) were obtained from CDC WONDER using ICD codes for AD (G30) and Atrial Fibrillation (I48). Joinpoint regression estimated Annual Percent Change (APC) and Average APC (AAPC), with significance set at p<0.05.Following the ADF/KPSS and Box-Ljung tests, ARIMA models with Box-Cox transformation were fitted for forecasting, and residual diagnostics were performed for model validation.

Results:

From 1999–2023, 139,580 Alzheimer’s disease–related deaths involved atrial fibrillation (mean AAMR: 12.37 per 100,000). Mortality rose sharply from 6.8 to 19.1, peaking in 2020 (APC: 6.69; 95% CI: 5.27–8.14). The ARIMA forecasting model predicted a rise in AAMR to 22.85 (95% CI: 17.01–28.68) by 2035 (ACDF p = 0.75; Box-Ljung test p = 0.90). Females accounted for 64.8% of deaths and had a higher AAMR compared with males (12.5 vs. 11.8). Non-Hispanic White individuals comprised 94% of deaths (AAMR: 12.96). The South showed the highest regional burden (AAMR: 11.78), while Oregon and Minnesota had the greatest state-level AAMRs (46.7 and 39.2, respectively). Urban–rural differences were modest, but higher rates were observed in non-metropolitan areas.

Conclusions:

Alzheimer’s disease related mortality involving atrial fibrillation has nearly tripled since 1999, with persistent disparities by sex, race, and geography. The South and non-metropolitan regions bear the highest burden, disproportionately affecting White individuals and women. These trends underscore the urgent need for integrated neurocardiac care, equitable resource allocation, and early rhythm control strategies in aging populations.

10.1212/WNL.0000000000216092
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