Developing a Multisensor-Based Machine Learning Technology (Aidar Decompensation Index) for Real-Time Automated
Jenny Mathew1, Jaclyn A Pagliaro2, Sathyanarayanan Elumalai1
1Aidar Health, Inc, Columbia, MD, United States.
JMIR Research Protocols
|March 27, 2025
Summary
This study introduces the Aidar Decompensation Index (AIDI) to predict health decline in severe COVID-19 survivors. The AIDI uses daily vital signs from the MouthLab device to identify patients at risk of decompensation.
Area of Science:
- Cardiology
- Pulmonology
- Infectious Diseases
- Biomarkers
- Digital Health
Background:
- Post-COVID-19 condition presents a significant global health challenge with persistent symptoms beyond 3 months.
- Severe COVID-19 survivors face increased hospitalization risks due to poorly understood pathophysiological mechanisms.
- Long-term effects on chronic cardiovascular and pulmonary diseases are anticipated in COVID-19 patients.
Purpose of the Study:
- To develop and validate the Aidar Decompensation Index (AIDI) for predicting health decompensation.
- To utilize the integrated MouthLab device and a cloud-based analytics engine for real-time health monitoring.
- To assess AIDI's efficacy in patients with a history of severe COVID-19.
Main Methods:
- Enrollment of 200 participants with severe COVID-19 history and chronic conditions.
- Daily physiological data capture via MouthLab device and monthly symptom surveys.
- Development of the AIDI based on physiological signals and clinical characteristics to predict decompensation events (DEs).
Main Results:
- Recruitment of 204 patients initiated in January 2023.
- Study completion and full results publication are anticipated in 2025.
- The AIDI model is expected to achieve >80% sensitivity and >70% positive predictive value.
Conclusions:
- Identifying predictor variables from biosensor-derived physiological features can capture diverse post-COVID-19 complications.
- The AIDI has the potential to enable early detection and management of health decline in severe COVID-19 survivors.
- This approach may improve long-term outcomes for individuals affected by the post-COVID-19 condition.
Keywords:
AIDIAidar Decompensation IndexPACSbiophysical biomarkers of worsening healthbiosensor-based physiological monitoringcardiorespiratory, metabolic, renal, and neurological complications after COVID-19early warning signs of clinical decompensationlong COVIDnoninvasive monitoring of physiologypostacute sequelae of COVID-19rapid assessment toolrisk triaging related to long COVID

