RT Journal Article
SR Electronic
T1 “My Fitbit tells me I don’t sleep”
JF European Respiratory Journal
JO Eur Respir J
FD European Respiratory Society
SP 3475
DO 10.1183/13993003.congress-2022.3475
VO 60
IS suppl 66
A1 M Munsif
A1 R Jumabhoy
A1 K Rangamuwa
A1 D Mansfield
A1 S Drummond
A1 E Dabscheck
A1 E Dabscheck
YR 2022
UL http://erj.ersjournals.com/content/60/suppl_66/3475.abstract
AB Background: There has been a rapid growth in wearables marketed to measure sleep. Fitbit trackers collect data through an internal accelerometer and use heart rate variability to estimate the sleep-wake state. There is a paucity of “real-world” data in patients who are being evaluated for sleep disorders.Aim: To evaluate the agreement between Fitbit Charge3TM & in-lab polysomnography (PSG) in patients who require a PSG for assessment.Methods: A prospective study of patients attending a PSG through Epworth Camberwell Sleep Lab between 2020-2021 was conducted. Fitbit Charge3TM was worn on the dominant wrist with concurrent PSG monitoring. Parameters measured included total sleep time; TST (min), Sleep onset latency; SOL (min), sleep efficiency; SE (%), wake after sleep onset; WASO (min) and time spent in N1, N2, N3 and REM sleep (min). 30 second epoch-by-epoch analyses were conducted.Results: Seventy patients (male=52), median age of 55 years; IQR(45,67) completed the study. On average, the Fitbit significantly overestimated light sleep by 62.99 min, TST by 29.50 min, and SE by 3.33% and underestimated deep sleep by 40.55 min WASO by 28 min. Fitbit and PSG did not significantly differ on REM or SOL measurements.Conclusion: Our findings may support the use of Fitbit Charge3TM as an initial screening device to assess sleep duration and architecture in select patients attending sleep clinicsTable 1: Comparison of sleep variables between PSG and Fitbit Charge 3TMView this table:FootnotesCite this article as Eur Respir J 2022; 60: Suppl. 66, 3475.This article was presented at the 2022 ERS International Congress, in session “-”.This is an ERS International Congress abstract. No full-text version is available. Further material to accompany this abstract may be available at www.ers-education.org (ERS member access only).