REF_T1_PSQI
Networks
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Variables
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Sleep quality over the past month was assessed using the Pittsburgh Sleep Quality Index (PSQI). The questionnaire evaluated multiple aspects of sleep including sleep duration, disturbances, latency, and daytime dysfunction.
https://doi.org/10.1016/0165-1781(89)90047-4
Licence: Creative Commons Attribution 4.0 International (CC-BY 4.0)
Population
REF
REF (Reference Group); Community-dwelling healthy older adults with good metabolic health and mobility and who are physically active; reference population for comparison with compromised groups. This population was assessed at the Leiden University Medical Center in Leiden, the Netherlands.