Lack of Agreement between Polysomnography and Accelerometry Devices for Measuring Sleep Efficiency and Movement in University Students
artículo original
Fecha
2020Autor
Carazo Vargas, Pedro
Salazar Obando, Joshua
Vargas Montero, Andrea
Alvarado Barrantes, Ricardo
Siles Canales, Francisco
Moncada Jiménez, José
Metadatos
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The aim of the study was to determine the convergent validity of a portable polysomnograph and
an accelerometer for measuring sleep efficiency and movement in college students. Volunteers
were 29 healthy students (males = 15, females = 14) who simultaneously wore the Nox T3 portable
polysomnograph and the ActiGraph wGT3X-BT accelerometer. Both devices recorded x, y, and
z coordinates at 10 Hz starting at 20:00:00 until the following morning. Repeated measures,
concordance correlation coefficient, graphical, mixed-model, and Bayesian approaches were used
to determine convergent validity. The sleep efficiency recorded by the Nox T3 was lower than the
recorded by the ActiGraph wGT3X-BT (73.9 ± 24.3% vs. 86.1 ± 9.8%, p = .024; 95%CI = 1.8, 22.7), and
both devices showed a poor concordance correlation coefficient (−0.09, 95%CI = −0.29, 0.13). The
sleep monitor devices should not be used interchangeably to determine sleep efficiency and
movement in college students.
External link to the item
10.1080/1091367X.2020.1819814
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