Diagnosis of obstructive sleep apnea using a bio-radar contact-free system compared with an established HST device in older adults

• Published in: Sleep health Vol. 9; no. 3; pp. 381 - 386
• Main Authors: Li, Chuan Xiang, Zhang, Yun Feng, Zhu, Zheng, Lu, Fang Ying, Wang, Yi, Zhang, Li Yue, Li, Ning, Sun, Xian Wen, Li, Qing Yun
• Format: Journal Article
• Language: English
• Published: United States Elsevier Inc 01.06.2023
• Subjects: Aged; Aged, 80 and over; Contact-free monitor; Female; Home sleep apnea test; Humans; Male; Middle Aged; Obstructive sleep apnea; Polysomnography - methods; Portable monitoring device; Prospective Studies; Radar; Respiratory event index; Sleep; Sleep Apnea, Obstructive - diagnosis; Home sleep apnea test; Contact-free monitor; Portable monitoring device; Obstructive sleep apnea; Respiratory event index
• ISSN: 2352-7218; 2352-7226; 2352-7226
• DOI: 10.1016/j.sleh.2023.01.001

To compare a bio-radar contact-free monitoring device in diagnosing obstructive sleep apnea (OSA) in older people with an established home sleep apnea testing system (HST). A bio-radar contact-free monitoring device (OrbSense+). An established HST, Alice NightOne. Fifty-three out of 63 recruited subjects were included in the final analysis. Seventy-two percent were male (age 72 ± 9 years; body mass index 31.05 ± 5.56 kg/m2). An observational, prospective study. Intraclass correlation coefficient (ICC), Bland-Altman analysis, and receiver operating characteristic analysis. None. Both 45 (84.91%) were diagnosed with OSA by Alice NightOne (average respiratory event index = 21.23 events/h) and by OrbSense+ (average respiratory event index = 25.98 events/h). Respiratory event index and oxygen desaturation index obtained by Alice NightOne and OrbSense+ were highly correlated, with ICC of 0.93 and 0.88, respectively. The Bland-Altman plot comparing the means showed good agreement between the 2 diagnostic techniques. With more than 5 respiratory events per hour as the standard for OSA diagnosis, OrbSense+ had a sensitivity of 100% and a specificity of 100% in diagnosis of OSA (P < .0001). With more than 15 respiratory events per hour as the standard for OSA diagnosis, OrbSense+ was found to have a sensitivity of 100% and a specificity of 86.96% in diagnosis of OSA (P < .0001). None. The bio-radar sleep monitoring device is a reasonably accurate home sleep apnea test for use in older patients.