The first night effect during polysomnography, and patients' estimates of sleep quality

Psychiatry Res. 2019 Apr:274:27-29. doi: 10.1016/j.psychres.2019.02.011. Epub 2019 Feb 6.

Abstract

We surveyed patients the next morning after in-laboratory polysomnography (PSG) to compare the first night effect (FNE) and reverse first night effect (RFNE) in different sleep disorders. A questionnaire was given to 852 patients with insomnia (n = 171), restless legs syndrome (n = 186), obstructive sleep apnea (n = 369), simple snoring (n = 54), REM sleep behavior disorder (n = 39), and hypersomnia (n = 33). FNE was seen in 48.9%, 30.5% slept as usual, and 20.6% had RFNE. The highest incidences of FNE were seen in OSA, simple snoring, hypersomnia, and in men. We propose to use these findings as a reference when interpreting nocturnal in-laboratory PSG results.

Keywords: First night effect; Reverse first night effect; Sleep quality.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Aged
  • Aged, 80 and over
  • Female
  • Humans
  • Male
  • Middle Aged
  • Polysomnography / methods
  • Polysomnography / psychology*
  • Polysomnography / trends
  • REM Sleep Behavior Disorder / diagnosis
  • REM Sleep Behavior Disorder / physiopathology
  • REM Sleep Behavior Disorder / psychology
  • Retrospective Studies
  • Sleep / physiology*
  • Sleep Apnea, Obstructive / diagnosis
  • Sleep Apnea, Obstructive / physiopathology
  • Sleep Apnea, Obstructive / psychology
  • Sleep Initiation and Maintenance Disorders / diagnosis
  • Sleep Initiation and Maintenance Disorders / physiopathology
  • Sleep Initiation and Maintenance Disorders / psychology
  • Sleep Wake Disorders / diagnosis*
  • Sleep Wake Disorders / physiopathology
  • Sleep Wake Disorders / psychology*
  • Snoring / diagnosis
  • Snoring / physiopathology
  • Snoring / psychology
  • Surveys and Questionnaires*
  • Time Factors