Modification of McGill Oximetry Score in Improving the Diagnostic Capability of Paediatric OSA

Wong, Wannitta E. Ting and Saniasiaya, Jeyasakthy and Salehuddin, Nur Syazwani Mohd and H'ng, Shih Ying and Nathan, Anna Marie (2024) Modification of McGill Oximetry Score in Improving the Diagnostic Capability of Paediatric OSA. Clinical Otolaryngology, 49 (6). pp. 801-809. ISSN 1749-4478, DOI https://doi.org/10.1111/coa.14214.

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Abstract

Objectives This study aimed to devise a modified oximetry scoring system and calculate its diagnostic accuracy in detecting paediatric obstructive sleep apnoea syndrome (OSAS). Study Design This prospective diagnostic accuracy study was divided into two phases. Setting The study was conducted at a quaternary teaching hospital. Methods Polysomnograms performed from 1 April 2014 to 31 December 2021 were included. In Phase 1, the parameters of 95 oximetry trend graphs were evaluated, and a modified scoring system was constructed. In Phase 2, the modified scoring system was employed in 272 oximetry trend graphs, and its diagnostic accuracy was determined. A logistic regression model was used to assess the ability of each scoring system to predict paediatric OSAS. Results A total of 367 patients were recruited. In Phase 1, a four-tier severity classification system was constructed. In Phase 2, its diagnostic accuracy was found to be 53.3% sensitive, 97% specific, with positive predictive value of 98.5% and negative predictive value of 34.6%. The lowest detectable apnoea-hypopnoea index (AHI) was 4.5. The inter-rater reliability calculated was 80%. Logistic regression was applied to assess associations of the modified McGill score (MMS) or McGill oximetry score (MOS) with OSAS. The area under the receiver operating characteristic curve was higher for the MMS than for MOS (0.78 95% CI 0.73-0.84] vs. 0.59 95% CI 0.51-0.66]). Conclusion This study demonstrated that our modified scoring system had increased sensitivity at detecting OSAS at a much lower AHI and showed a much greater ability to predict paediatric OSAS.

Item Type: Article
Funders: UNSPECIFIED
Uncontrolled Keywords: obstructive sleep apnoea; paediatric; pulse oximetry; sensitivity; specificity
Subjects: R Medicine > RF Otorhinolaryngology
Divisions: Faculty of Medicine > Otorhinolaryngology Department
Faculty of Medicine > Paediatrics Department
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 14 Apr 2025 03:25
Last Modified: 14 Apr 2025 03:25
URI: http://eprints.um.edu.my/id/eprint/46623

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