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Performance characteristics of the French version of the severity hierarchy score for paediatric sleep apnoea
Xuân-Lan Nguyên1, Pierre Lévy2, Nicole Beydon3
1Unité Sommeil et Fonction Respiratoire, Hôpital Saint-Antoine, Paris, France.
Insights
The French Severity Hierarchy Score (SHS) effectively screens for paediatric obstructive sleep apnoea syndrome (OSAS). This validated tool aids in identifying children needing further sleep studies, improving diagnosis rates.
Area of Science:
- Pediatric Sleep Medicine
- Respiratory Medicine
- Diagnostic Tools
Background:
- Paediatric obstructive sleep apnoea syndrome (OSAS) is common and linked to cognitive and cardiovascular issues.
- Current diagnosis via polysomnography (PSG) is limited, leading to under-diagnosis.
- A simple screening tool is needed to identify at-risk children for OSAS.
Purpose of the Study:
- To evaluate the French version of the Severity Hierarchy Score (SHS) for diagnosing paediatric OSAS.
- To assess SHS's predictive performance against polysomnography (PSG) in a French pediatric cohort.
Main Methods:
- Prospective study of 96 children referred for sleep-disordered breathing assessment.
- Parents completed the French SHS questionnaire before polysomnography (PSG).
- Sensitivity, specificity, and ROC analysis were used to evaluate SHS for moderate OSAS (AHI ≥5/hour TST).
Main Results:
- An SHS score cutoff of >2.75 showed 82% sensitivity and 81% specificity for moderate OSAS.
- The score achieved a 92% negative predictive value for detecting an apnoea-hypopnoea index (AHI) of ≥5/hour total sleep time (TST).
Conclusions:
- The French version of the SHS is a suitable screening tool for paediatric OSAS.
- This score can assist clinicians in prioritizing children for sleep studies and improve OSAS diagnosis.
Background:
Paediatric obstructive sleep apnoea syndrome (OSAS) is a highly prevalent condition carrying increased risk for impaired cognitive and cardiovascular function. The standard diagnosis consists of full-night polysomnography (PSG), but limited access to PSG leads to substantial under-diagnosis. The use of a validated and simple diagnostic screening tool to predict OSAS could prioritise night sleep recordings in children at risk of OSAS, and help in clinical decision-making.
Objective:
This study aimed to prospectively assess the performance of the French version of the severity hierarchy score (SHS) in paediatric OSAS. This score consists of a discriminative subset of six respiratory items, and has already been validated in English for screening OSAS in the general paediatric population.
Methods:
A total of 96 children (mean age 7.1 ± 2.4 years; BMI z-score: -0.03 ± 1.50) were recruited; they had been were referred to two academic sleep centres in France for the putative diagnosis of sleep-disordered breathing. The parents completed the SHS questionnaire prior to PSG. Sensitivity and specificity of the SHS for detecting moderate OSAS, defined by an apnoea-hypopnoea index (AHI) of ≥5/hours of total sleep time (TST), were assessed, and ROC analysis was performed.
Results:
An SHS score of >2.75 exhibited an 82% sensitivity, 81% specificity, and 92% negative predictive value for detecting an AHI of ≥5/hour TST in the cohort.
Conclusion:
The French version of the SHS emerged as favourably suited for the screening for OSAS in children.
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