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Your Night's Watch: Leveraging Mi-Band-3 Smartwatches and Machine Learning for Detecting Nocturnal Asthma Attacks

Li, Tianji; Tsang, Kevin CH; (2025) Your Night's Watch: Leveraging Mi-Band-3 Smartwatches and Machine Learning for Detecting Nocturnal Asthma Attacks. In: 2025 47th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC). (pp. pp. 1-5). IEEE: Copenhagen, Denmark. Green open access

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Abstract

This study integrates machine learning and wearable technology to detect nocturnal asthma attacks from daily questionnaire responses, patient information, and MiBand-3 smartwatch data. Four models—Logistic Regression, Naive Bayes, Random Forest, and XGBoost—were trained and tuned using grid search and five-fold cross-validation. XGBoost achieved the best performance on the test set, with an AUC of 0.87, an AUPRC of 0.71, and a 2.55-fold increase in precision. Models combining active- (patient-reported) and passive- (device-collected) monitoring features outperformed passivemonitoring only approaches, emphasizing the importance of multiple data sources. Key predictors included an indication of asthma trigger encounter, maximum expected PEF, age, obesity, and sleep quality metrics, revealing complex interactions. Although the Mi-Band-3 contributed valuable information, it could not fully replace active monitoring. Future work should incorporate a larger, more diverse participant pool, integrate additional asthma-related variables, and explore advanced timeseries models to improve predictive accuracy and reduce patient burden. Clinical Relevance— Machine learning–driven detection modeling can serve as an early warning system for nocturnal asthma attacks, integrating diverse risk factors and wearable sensor data to improve accuracy. Such a tool could shift asthma management towards a more preventative, personalized approach—minimizing reliance on burdensome self-monitoring, enhancing patient quality of life, and enabling clinicians to intervene proactively when nocturnal symptoms are likely to worsen.

Type: Proceedings paper
Title: Your Night's Watch: Leveraging Mi-Band-3 Smartwatches and Machine Learning for Detecting Nocturnal Asthma Attacks
Event: 2025 47th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)
Dates: 14 Jul 2025 - 18 Jul 2025
Open access status: An open access version is available from UCL Discovery
DOI: 10.1109/embc58623.2025.11253002
Publisher version: https://doi.org/10.1109/embc58623.2025.11253002
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > Institute of Health Informatics
URI: https://discovery.ucl.ac.uk/id/eprint/10219939
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