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Table 1 Outcome Measures

From: Palmitoylethanolamide for sleep disturbance. A double-blind, randomised, placebo-controlled interventional study

Outcome measure

Frequency

Tool used

Sleep Quality and Quantity

Baseline, day 5, weeks 2, 4 & 8

PSQI, Polar A370 sleep monitor (wrist actigraphy) and the consensus sleep diary

Sleep onset latency

Baseline, day 5, weeks 2, 4 & 8

Consensus sleep diary

Sleep disturbance (waking during the night or waking too early)

Baseline, day 5, weeks 2, 4 & 8

Wrist actigraphy, consensus sleep diary and the PROMIS sleep disturbance questionnaire

Sleep inertia

Baseline, day 5, weeks 2, 4 & 8

SIQ and wrist actigraphy

Daytime sleepiness

Baseline, day 5, weeks 2, 4 & 8

SIQ and consensus sleep diary

Morning grogginess on waking

Baseline, day 5, weeks 2, 4 & 8

SIQ and consensus sleep diary

Daytime nap count and duration

Baseline, day 5, weeks 2, 4 & 8

ESS and consensus sleep diary

General quality of life

Baseline, day 5, weeks 2, 4 & 8

SF-36

Pathology and Safety markers

Baseline and week 8

Albumin, ALT, AST, GGT, total bilirubin, hsCRP, IL10, IL6, IL8 and TNFa

Adverse events

Continuously

Spontaneously reported by the participant or noticed by a trial supervisor

  1. PSQI Global Pittsburgh Sleep Quality Index, PROMIS Patient Reported Outcomes Measurement Information System, SIQ The Sleep Inertia Questionnaire, ESS Epworth Sleepiness Scale, SF-36 Rand 36-item Health Survey, ALT Alanintransaminase, AST Aspartate Transaminase, GGT Gamma-Glutamyl Transferase, hsCRP high sensitivity C-reactive Protein, IL interleukin, TNF Tumor Necrosis Factor