Self-reported sleep patterns in a British population cohort.

ABSTRACT:

Objectives

Sleep patterns have been linked to various health outcomes, but sleep patterns in the British population have not been extensively reported. We aimed to describe the sleep characteristics reported by the European Prospective Investigation of Cancer (EPIC)-Norfolk participants, with a particular emphasis on the comparison of measures of sleep quantity.

Methods

From 2006 to 2007, a total of 8480 participants aged 45-90 years reported sleep timing, nighttime sleep duration, and sleep difficulties. Time in bed (TIB) was calculated from the difference between rise time and bedtime, and sleep proportion was defined as the ratio of sleep duration and TIB.

Results

On average, the reported TIB was more than 1.5h longer than sleep durations. Compared to men, women sp

SUBMITTER: Leng Y 

PROVIDER: S-EPMC3988958 | biostudies-literature | 2014 Mar

REPOSITORIES: biostudies-literature