Light in Healthcare Environment (Ljus i sjukhusmiljö)

NCT06687304 | Recruiting

• 1 other identifier: 2024-04436-02
• Study Type: interventional
• Target: 18
• Locations: 1 country
• Sites: 3

Brief Summary

The goal of this clinical trial is to learn if light can enhance the feeling of well-being and sleep quality in Radiographers. It will also find out if there is an optimal recipe for light. The main questions it aims to answer are:

• Will alertness, energy levels, and sleep quality increase in radiographers when the lighting is differed?
• What light recipe is the most beneficial for the personnel? Researchers will compare no enhanced light environment to different enhanced light environment to see if the enhanced light is beneficial for radiographers. Participants will:
• Will work in an enhanced light environment or a non-enhanced light environment
• Answer surveys
• Take saliva sample

Conditions

Sleep Quality; Well-being; Melatonin; Cortisol; Energy Levels

Keywords

Light; Radiography; Light environment; Circadian rhythm; Personnel at radiology departments

Outcome Measures

Primary Outcomes (3)

• Karolinska Sleepiness Scale (KSS)

  To assess the subjective level of sleepiness at a particular time during the day

  Measurements will be taken three times daily over a period of 16 to 20 weeks, depending on the start date of the inclusion phase, for each period.

• WHO-5 Well-Being Index

  To assess the level of well-being, the WHO-5 Well-Being Index is used. It's a brief, self-reported measure of current mental well-being, consisting of five questions that assess positive mood, vitality, and general interest over the past two weeks.

  Measurements will be taken at the start and then second Friday in each two-week period over the 16 to 20 weeks (depending on when the inclusion phase can begin) during which inclusion occurs for each season.

• PROMIS

  Patient-Reported Outcomes Measurement Information System (PROMIS) is a standardized, self-reported questionnaire designed to measure an individual's perception of their sleep quality, specifically addressing issues like difficulty falling asleep, staying asleep, and feelings of restlessness. It consists of 8 items that gauge the severity of sleep disturbances over the past seven days.

  Measurements will be taken at the start and then every Friday in each two-week period over the 16 to 20 weeks (depending on when the inclusion phase can begin) during which inclusion occurs for each season.

Other Outcomes (2)

• Melatonin

  Measurements will be taken on Mondays, Wednesdays, and Fridays each week over the 16 to 20 weeks (depending on when the inclusion phase can begin) during which inclusion takes place for each season.

• Cortisol

  Measurements will be taken on Mondays, Wednesdays, and Fridays each week over the 16 to 20 weeks (depending on when the inclusion phase can begin) during which inclusion takes place for each season.

Study Arms (2)

Enhanced light environment

ACTIVE COMPARATOR

Device: Light enhancement

Non-enhanced light environment

NO INTERVENTION

Interventions

Light enhancement DEVICE

Light recipe that mimics the varying daylight of the day

Also known as: Lamp, Light recipe, Dynamic lighting

Enhanced light environment

Eligibility Criteria

• Age: 21 Years+
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Radiographer

Sponsors & Collaborators

• Lund University: lead
• AFA Insurance: collaborator

Study Sites (3)

Skånes universitetssjukhus Lund

Lund, Skåne County, 22242, Sweden

RECRUITING

Skånes universitetssjukhus

Malmo, Skåne County, 21428, Sweden

RECRUITING

Lasarettet Trelleborg

Trelleborg, Skåne County, 23155, Sweden

RECRUITING

Related Publications (2)

• Weiss AR, Johnson NL, Berger NA, Redline S. Validity of activity-based devices to estimate sleep. J Clin Sleep Med. 2010 Aug 15;6(4):336-42.

  PMID: 20726281 BACKGROUND

• Ancoli-Israel S, Martin JL, Blackwell T, Buenaver L, Liu L, Meltzer LJ, Sadeh A, Spira AP, Taylor DJ. The SBSM Guide to Actigraphy Monitoring: Clinical and Research Applications. Behav Sleep Med. 2015;13 Suppl 1:S4-S38. doi: 10.1080/15402002.2015.1046356. No abstract available.

  PMID: 26273913 BACKGROUND

MeSH Terms

Conditions

Sleep Initiation and Maintenance Disorders

Condition Hierarchy (Ancestors)

Sleep Disorders, Intrinsic; Dyssomnias; Sleep Wake Disorders; Nervous System Diseases; Mental Disorders

Central Study Contacts

Pether Jildenstal, PhD

CONTACT

0046462220000; pether.jildenstal@med.lu.se

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: NON RANDOMIZED
• Masking: NONE
• Purpose: PREVENTION
• Intervention Model: CROSSOVER
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: November 4, 2024
• First Posted: November 13, 2024
• Study Start: November 15, 2024
• Primary Completion (Estimated): March 31, 2027
• Study Completion (Estimated): March 31, 2027
• Last Updated: December 2, 2025

Record last verified: 2025-11

Data Sharing

• IPD Sharing: Will not share

Locations

SE (3)