Short- and Long-Term Sleep Stability in Insomniacs and Healthy Controls.

ABSTRACT:

Study objectives

Assess the short- and long-term stability of sleep duration in patients with insomnia and normal-sleeping controls.

Design

Observational short-term and prospective studies.

Setting

Sleep laboratory.

Participants

Patients with insomnia (n = 150) and controls (n = 151) were recruited from the local community or sleep disorders clinic. A subsample of 95 men from the Penn State Adult Cohort (PSAC) were followed up 2.6 y after their initial visit.

Measurements

Participants underwent a physical examination and 8-h polysomnography (PSG) recording for 3 consecutive nights (controls and insomniacs), or 2 single nights separated by several years (PSAC). Intraclass correlation coefficients (ICCs) assessed the stability of the variables total sleep

SUBMITTER: Gaines J 

PROVIDER: S-EPMC4813370 | biostudies-literature | 2015 Nov

REPOSITORIES: biostudies-literature