Shift Work and Risk of Cardio-vascular Disease

Completed

• Conditions: Shift-Work Sleep Disorder
• Interventions: Other: Sleep, Dietary and Cardio-metabolic Measurements

• Registration Number: NCT02901860
• Lead Sponsor: University of Chicago

Brief Summary

The purpose of this research is to test the hypothesis that those with non-traditional work schedules (e.g. shift workers) have a higher cardio-metabolic risk than those with traditional work schedules (e.g. day workers), and that both accumulated sleep debt and the degree of circadian disruption predict the elevated cardio-metabolic risk. The findings of this research are expected to increase our understanding of physiologic tolerance to non-traditional work schedules and provide the basis for the development of methods for the early detection of adverse health effects and determine coping strategies for the millions of workers with non-traditional work schedules.

Detailed Description

Not available

Basic Information
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Recruitment & Eligibility
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Study & Design

Study Timeline

• Study Start: 2012-01
• Primary Completion: 2014-12
• Study Completion: 2014-12
• Study First Submitted: 2016-07-25
• Study First Submitted QC: 2016-09-09
• Study First Posted: 2016-09-15
• Status Verified: 2023-06
• Last Update Submitted: 2023-06-01
• Last Update Posted: 2023-06-02

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 86

Inclusion Criteria

Age 18 and older Full-time workers- working between 7:00 a.m. and 7:00 p.m. employed full time at a medical center.

Non-traditional full-time workers- working between 7:00 a.m. and 7:00 p.m and between 7:00 p.m. and 7:00 a.m., employed full time at a medical center.

Exclusion criteria include:

Acute illness or recent change in medication. Persons employed for less than 3 months at their current job

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Exclusion Criteria

Not provided

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Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Arm && Interventions

Group	Intervention	Description
Traditional workers	Sleep, Dietary and Cardio-metabolic Measurements	Individuals who work 'traditional" work hours, i.e., 9a-5p.
Non-traditional workers	Sleep, Dietary and Cardio-metabolic Measurements	Individuals who have work hours outside the usual daytime period

Primary Outcome Measures

Name	Time	Method
cardio-metabolic risk	Once	24-h ambulatory blood pressure monitoring and 3-h oral glucose tolerance test

Secondary Outcome Measures

Name	Time	Method
Obesity	Once	height, weight, BMI and waist/hip circumference and bioimpedance measurement of body fat