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Updated: Apr 19, 2026

Asthma Detection Research Based on Voice Signal Processing and Machine Learning
Published on: July 22, 2025
Evaluation of an Asthma Home Visiting Program in the State of Illinois, 2020-2023
Kunal N Patel1, M Omar Khaium, Nancy Amerson
1Author Affiliations: School of Health Studies (Patel), College of Health and Human Sciences, Northern Illinois University, DeKalb, Illinois; Department of Health and Kinesiology (Khaium, Gustafson, Johnson, and Geiger), University of Illinois Urbana-Champaign, Champaign, Illinois; Illinois Department of Public Health (Amerson and Woolverton), Springfield, Illinois.
Context:
Asthma Home Visiting (HV) programs offer community-based education and environmental interventions to improve asthma control and reduce health care use.
Objective:
To evaluate the health, quality of life (QoL), and cost outcomes of a multi-site asthma HV program implemented across Illinois from 2020 to 2023.
Design:
Cross-sectional program evaluation using pre- and post- intervention comparisons of health outcomes and health care utilization data.
Setting:
Four Illinois-based HV programs supported by the Illinois Department of Public Health and funded by the Centers for Disease Control and Prevention.
Participants:
A total of 209 participants (58.4% children) with physician-diagnosed asthma who received HV services between 2020 and 2023.
Main Outcome Measures:
Changes in emergency department (ED) visits, hospitalizations, QoL indicators (Asthma Control Rating, ACT scores, and missed school/workdays), and program cost-benefit ratio.
Results:
ED visits declined from 17.8% to 6% ( P < .05), and hospitalizations from 7.6% to 0% ( P < .05). QoL indicators improved significantly, with ACT well-controlled scores increasing from 24.8% to 45.4%. Estimated annual savings totaled $1.4 million, exceeding program costs of $1.04 million (benefit-cost ratio = 1.34).
Conclusions:
The Illinois asthma HV program improved health outcomes and reduced health care utilization, supporting its inclusion in comprehensive asthma care strategies.
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