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- W4313150178 abstract "<b>Introduction:</b> Sleeping position impacts on obstructive sleep apnea and positional therapy can be used in those with positional apnea. However, even in normal subjects, there is little data on body position in the sleep lab. This is a 5-year retrospective descriptive study of sleep body position and associations in patients without sleep disordered breathing in our laboratory. <b>Methods:</b> All level 1 sleep studies in adults ≥18 years from 2016 to 2021 were reviewed. Patients who had a diagnostic sleep study with a total sleep time (TST) of ≥360 minutes and apnea-hypopnea index (AHI) <5 were included. Sleep position was categorized into lateral, supine and prone by position sensor and video. <b>Results:</b> 309 of 1237 studies were included. Median age was 49 (IQR 28–49) years, BMI was 26 (23-30)kg/m2 and 41% were male. Overall median AHI was 2.5 (1.2-3.6), supine AHI 3.1 (1.0-6.4) and non-supine AHI 1.4 (0.6-2.8). Epworth Sleepiness Scale median score was 9 (5-12). The median total sleep time (TST) observed was 412 (361-415) minutes. The most prevalent body position was lateral at 59 (±27)% then supine 37 (±28)% and prone 5 (±13)%. Body position did not differ significantly in REM versus non-REM sleep. Younger age was associated with higher TST (Spearman co-efficient -0.21, p<0.01) and sleep efficiency (-0.3, p<0.01). Higher TST was noted in those with higher ESS (0.28, p<0.01). Patient characteristics showed no correlation with time spent in any position. <b>Conclusion:</b> In this sleep laboratory population without sleep disordered breathing, the most common body position during sleep was lateral. There was no difference in positions during NREM or REM sleep. A higher TST and sleep efficiency was seen in younger patients with a higher ESS." @default.
- W4313150178 created "2023-01-06" @default.
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- W4313150178 date "2022-09-04" @default.
- W4313150178 modified "2023-10-18" @default.
- W4313150178 title "In what position do people sleep in the sleep laboratory?" @default.
- W4313150178 doi "https://doi.org/10.1183/13993003.congress-2022.1665" @default.
- W4313150178 hasPublicationYear "2022" @default.
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