Study Objectives: To test the sleep-wake scoring reliability of a new wrist-worn sleep monitoring device.

Methods: Twenty-seven adult good sleepers underwent 1 night of polysomnography (PSG) while wearing both the new device (myCadian [MC]; CurAegis Technologies, Rochester, New York, United States) and commercially available actigraphy (Actiwatch 2 [AW]; Philips Respironics, Murrysville, Pennsylvania, United States) on their nondominant wrist. PSG tests were manually stage scored. After excluding missing data, 20 participants had full-night data on all three devices with 17,734 total 30-second epochs. Using PSG as the gold standard, pooled epoch-by-epoch agreement for sleep and wake was calculated for each device using percent agreement and Cohen kappa statistic. Positive predictive values for both sleep and wake epochs, as well as sleep continuity statistics, were calculated.

Results: Percent agreement with PSG-scored wake and sleep was 91.3% for MC (kappa = 0.67) and 87.7% for AW (kappa = 0.50). Positive predictive values for sleep epochs were 94.4% and 90.8% for MC and AW, respectively, and 74.5% and 65.6% for wake. Both devices underestimated wake and overestimated sleep compared to PSG. Descriptively, compared to PSG, sleep latency was higher with MC and wake after sleep onset higher with AW. Total sleep time and sleep efficiency were more similar across devices.

Conclusions: The kappa statistic for MC is consistent with a high level of agreement with PSG. Overall, the reliability of MC compared to PSG scoring was slightly more favorable than that of AW. Findings suggest that MC provides reliable sleep-wake scoring during a nocturnal sleep period for good sleepers.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5991960PMC
http://dx.doi.org/10.5664/jcsm.7180DOI Listing

Publication Analysis

Top Keywords

sleep
13
sleep-wake scoring
12
compared psg
12
wrist-worn sleep
8
sleep monitoring
8
good sleepers
8
united states
8
sleep wake
8
percent agreement
8
kappa statistic
8

Similar Publications

Sleep apnoea from a dentist's point of view.

Cent Eur J Public Health

December 2024

Department of Public Health and Hygiene, Faculty of Medicine, Pavol Jozef Safarik University in Kosice, Kosice, Slovak Republic.

Objectives: The aim of this study was to confirm the relevance of knowledge a dentist has regarding obstructive sleep apnoea (OSA), considering the fact that based on specific risk factors a dentist may be the first clinician to identify patients who are at risk of being affected by this serious condition.

Methods: The cohort consisted of 53 subjects who underwent a routine dental examination. Anthropometric data and data on tongue size (Mallampati classification), tonsil size (Friedman classification), daytime sleepiness (Epworth Sleepiness Scale) and systemic risk factors were recorded in a record sheet.

View Article and Find Full Text PDF

Association Between Persistent Maternal Depression among Japanese New Mothers and their Toddlers' Behaviors.

Matern Child Health J

January 2025

Department of Nursing for Community-based Integrated Care, Division of Integrated Health Sciences, Nagoya University Graduate School of Medicine, 1-1-20 Daiko- Minami, Higashi-ku, Nagoya City, Aichi Prefecture, Japan.

Objectives: To determine the association between mothers' persistent maternal depression and their toddlers' behavior.

Methods: Online surveys were conducted twice with mothers who gave birth to their first child between March and June 2020. The survey periods were November 2020 and May-June 2022.

View Article and Find Full Text PDF

The American Heart Association's (AHA) Life's Essential 8 (LE8) metrics provide a framework for assessing cardiovascular health (CVH). This study evaluates the relationship between CVH levels from LE8 and mortality risk, considering biological aging's role. Using data from the NHANES non-CVD adult population, CVH scores were categorized as low (< 50), moderate (50-79), and high (≥ 80) per AHA guidelines.

View Article and Find Full Text PDF

Depression in High-Risk Offspring: The Mediating Role of Sleep Problems.

Res Child Adolesc Psychopathol

January 2025

Department of Psychology and Neuroscience, Temple University, 1701 N. 13th St, Philadelphia, PA, 19122, USA.

Parental depression is associated with offspring depression and sleep problems are prospectively associated with the development of depression. However, little work has examined sleep problems in the offspring of depressed parents and whether these problems partially account for the association between parent and offspring depression. This longitudinal study examined the indirect effect of sleep problems on the association between parent psychopathology and offspring depression in a sample of 10,953 10 to 12-year-old children participating in the Adolescent Brain and Cognitive Development (ABCD) study.

View Article and Find Full Text PDF

Lithium has long been used as a cornerstone mood stabilizer in the treatment of bipolar disorder (BD). However, reliable biomarkers that can predict which patients will respond better to lithium are still lacking. This study aims to evaluate the potential of NR1D1 gene SNP; rs2071427 and actigraphic measurements in predicting lithium response.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!