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A Cross-Sectional Study of Circadian Stimulus in Swedish Radiographers' Light Environment.
Camilla Krahmer Anes Viseu1, Madeleine Selvander2
1Department of Health Sciences, Faculty of Medicine, Lund University, Lund, Sweden.
HERD
|September 12, 2024
Summary
Radiographers
Area of Science:
- Occupational Health
- Chronobiology
- Lighting Design
Background:
- Proper light exposure is crucial for sleep and well-being.
- Disturbed circadian rhythms pose health risks.
- Optimizing light can support circadian rhythm regulation.
Purpose of the Study:
- To assess the circadian stimulus (CS) in radiographers' workstations.
- To compare workplace lighting with Swedish Environmental Protection Agency recommendations.
- To evaluate the light environment in a university hospital's radiology department.
Main Methods:
- Cross-sectional study design.
- Circadian stimulus (CS) measurements collected in radiology labs.
- Data gathered in January across 19 labs.
Main Results:
- The median CS was 0.091, significantly below the recommended 0.3 CS.
- A significant difference was found between work light settings and maximum light levels.
- Radiographers' self-selected light levels were insufficient.
Conclusions:
- Current light levels in the radiology department do not meet recommended circadian stimulus values.
- There is potential to improve lighting conditions for radiographers.
- Workplace lighting adjustments can enhance circadian stimulus.

