Prevalence and Risk Factors of Positional Obstructive Sleep Apnea (POSA) among Children with Obstructive Sleep Apnea
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Abstract
Objective: This study aimed to assess the prevalence and risk factors of positional obstructive sleep apnea (POSA) among children with OSA.
Methods: A retrospective study was conducted. One hundred and three children with OSA who were aged 3 to 18 years between April 2013 and July 2021 were included in this study. Demographic and polysomnographic data were gathered.
Results: The prevalence of POSA was 42.7%. No significant differences were observed in age, gender, tonsil score, weight status and medical comorbidities. Children with POSA had a significantly higher supine AHI than non-POSA (9.6 [0.0-98.7] versus 4.7 [0.0-55.4], p = 0.012). The median non-supine AHI of POSA was significantly lower than non-POSA (0.0 [0.0-18.6] versus 5.3 [0.0-78.9], respectively p < 0.001).
Conclusion: POSA among children with OSA occurs frequently, similar to adults with POSA. POSA is associated with higher supine AHI and lower non-supine AHI. Positional therapy might be beneficial in children with POSA.
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