Journal: Sleep

Article Title: Sleep Characteristics and Daytime Cortisol Levels in Older Adults

doi: 10.1093/sleep/zsx043

Figure Lengend Snippet: Weighted distributions of sociodemographic, behavioral, health, and sleep characteristics among the analytic sample measured at Wave 2 in the National Social Life, Health and Aging Project (NSHAP) from August 2010 to May 2011 a .

Article Snippet: Both actigraph-measured sleep fragmentation (β = 0.02; 95% confidence interval [CI] = 0.01 to 0.04) and WASO (β = 0.26; 95% CI = 0.09 to 0.43) were significantly and positively associated with individual-level cortisol effects in the unadjusted models such that those with more sleep disruption showed higher levels of daytime cortisol ( ).

Techniques: Activity Assay, Modification

Journal: Sleep

Article Title: Sleep Characteristics and Daytime Cortisol Levels in Older Adults

doi: 10.1093/sleep/zsx043

Figure Lengend Snippet: Unadjusted linear regression models of individual-level cortisol effect regressed on sleep measures for the National Sleep Life, Health and Aging (NSHAP) project Wave 2 from August 2010 to May 2011 a .

Article Snippet: Both actigraph-measured sleep fragmentation (β = 0.02; 95% confidence interval [CI] = 0.01 to 0.04) and WASO (β = 0.26; 95% CI = 0.09 to 0.43) were significantly and positively associated with individual-level cortisol effects in the unadjusted models such that those with more sleep disruption showed higher levels of daytime cortisol ( ).

Techniques:

Journal: Digital Health

Article Title: The Ava bracelet for collection of fertility and pregnancy data in free-living conditions: An exploratory validity and acceptability study

doi: 10.1177/20552076221084461

Figure Lengend Snippet: Measures collected to validate the Ava bracelet.

Article Snippet: The Ava bracelet sleep duration measures had a moderate correlation to the ActiGraph ( r: 0.73), an acceptable MAPE value (<10%), and estimates that overlapped the equivalence region.

Techniques: Activity Assay

Journal: Digital Health

Article Title: The Ava bracelet for collection of fertility and pregnancy data in free-living conditions: An exploratory validity and acceptability study

doi: 10.1177/20552076221084461

Figure Lengend Snippet: Ava bracelet validity methods and expectations.

Article Snippet: The Ava bracelet sleep duration measures had a moderate correlation to the ActiGraph ( r: 0.73), an acceptable MAPE value (<10%), and estimates that overlapped the equivalence region.

Techniques: Construct, Activity Assay

Journal: Digital Health

Article Title: The Ava bracelet for collection of fertility and pregnancy data in free-living conditions: An exploratory validity and acceptability study

doi: 10.1177/20552076221084461

Figure Lengend Snippet: Criterion validity of Ava bracelet compared to ActiGraph GT3X + and polar chest strap (criterion measure).

Article Snippet: The Ava bracelet sleep duration measures had a moderate correlation to the ActiGraph ( r: 0.73), an acceptable MAPE value (<10%), and estimates that overlapped the equivalence region.

Techniques:

Journal: Digital Health

Article Title: The Ava bracelet for collection of fertility and pregnancy data in free-living conditions: An exploratory validity and acceptability study

doi: 10.1177/20552076221084461

Figure Lengend Snippet: (A) The correlation between the sleep duration measured via the ActiGraph and the sleep duration measured via the Ava bracelet. (B) Bland Altman plot illustrating the bias between the ActiGraph and the Ava bracelet sleep duration measurements, plotted against the ActiGraph (gold standard) sleep duration measurements.

Article Snippet: The Ava bracelet sleep duration measures had a moderate correlation to the ActiGraph ( r: 0.73), an acceptable MAPE value (<10%), and estimates that overlapped the equivalence region.

Techniques:

Journal: Digital Health

Article Title: The Ava bracelet for collection of fertility and pregnancy data in free-living conditions: An exploratory validity and acceptability study

doi: 10.1177/20552076221084461

Figure Lengend Snippet: Equivalence testing for sleep duration. The shaded gray area indicates the proposed equivalence zone (±10% of the ActiGraph sleep duration mean). The dark bar indicates the 90% confidence interval for the mean sleep duration estimated by the Ava bracelet.

Article Snippet: The Ava bracelet sleep duration measures had a moderate correlation to the ActiGraph ( r: 0.73), an acceptable MAPE value (<10%), and estimates that overlapped the equivalence region.

Techniques:

Journal: Digital Health

Article Title: The Ava bracelet for collection of fertility and pregnancy data in free-living conditions: An exploratory validity and acceptability study

doi: 10.1177/20552076221084461

Figure Lengend Snippet: Construct validity of Ava bracelet compared to construct measures. a

Article Snippet: The Ava bracelet sleep duration measures had a moderate correlation to the ActiGraph ( r: 0.73), an acceptable MAPE value (<10%), and estimates that overlapped the equivalence region.

Techniques: Construct, Activity Assay

Journal: Digital Health

Article Title: The Ava bracelet for collection of fertility and pregnancy data in free-living conditions: An exploratory validity and acceptability study

doi: 10.1177/20552076221084461

Figure Lengend Snippet: Acceptability of Ava bracelet and mobile app.

Article Snippet: The Ava bracelet sleep duration measures had a moderate correlation to the ActiGraph ( r: 0.73), an acceptable MAPE value (<10%), and estimates that overlapped the equivalence region.

Techniques: