Validation of the newly developed Sleep Screening Questionnaire Children and Adolescents (SSQ-CA) with objective sleep measures.

Objectively validated pediatric sleep questionnaires covering a broader age range and different sleep disturbances are lacking, therefore we developed the Sleep Screening Questionnaire Children and Adolescents (SSQ-CA) and compared it with objective sleep parameters. This child-reported questionnaire was developed by a multidisciplinary panel and face validated. In a cross-sectional prospective design, participants aged 6-17, answered the questionnaire twice with 21-28 days in between, wore actigraphy (AG) and kept a sleep diary for seven nights and home-polysomnography (PSG) for one of these nights. Exploratory factor analyses (EFA), reliability and validity assessments were performed. Of the 139 participants, 128 (F:47.7%, AG: n = 128, PSG: n = 59), were included in the analyses. Mean age: 11.3 years (SD: 2.9). EFA revealed 11 factors and 40 items loading above r = 0.4. Subscale internal consistency: 0.54-0.92. Subscale test-retest reliability: r = 0.71-0.87. Total sleep time (TST) from SSQ-CA on weekdays correlated with PSG (r = 0.48, p = 0.001) and with AG (r = 0.75, p < 0.001). The subscale total score for "Sleep duration and latency" correlated with TST from AG (r = -0.19, p = 0.03) and sleep latency (r = 0.31, p < 0.001), but not for PSG variables. The subscale "Awakenings" showed no correlation with objective measures whereas "Circadian rhythm" correlated to AG-derived mid-sleep time (r = 0.34, p < 0.001). The SSQ-CA shows adequate reliability for the 6-17-year-olds and acceptable criterion validity for two subscales. It appears to be a useful tool for screening for sleep disturbances in combination with objective tools as the subjective and objective parameters seem to uncover different aspects of sleep.

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Déclaration de conflit d'intérêts

Declaration of competing interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Cecilie Paulsrud reports financial support was provided by Danish Diabetes And Endocrine Academy. Cecilie Paulsrud reports financial support was provided by Toyota Foundation. Cecilie Paulsrud reports financial support was provided by Danish Medical Association. Cecilie Paulsrud reports financial support was provided by Holms Memorial Legatee. Steffen Ullitz Thorsen reports financial support was provided by Danish Diabetes Association. Nanette Mol Debes reports financial support was provided by The AP Møller Support Foundation. Nanette Mol Debes reports financial support was provided by Dr Louise Childrens Hospital Research Foundation. Cecilie Paulsrud reports financial support was provided by Professor Kirsten Nørgaard (Steno Diabetes Center Copenhagen). Cecilie Paulsrud reports financial support was provided by Capitol Region of Denmark Artificial Intelligence Foundation. Cecilie Paulsrud reports financial support was provided by Factuality of Health Sciences Foundation University of Copenhagen.