Pre-Obesity Markers In Shift workers and non-shift workers

Pre-Obesity Markers In Shift workers and non-shift workers - PROMIS

Status

Recruiting

Phases

Unknown

Study type

Observational

Source

NL-OMON

Registry ID

NL-OMON56886

Enrollment

200

Registered

2024-02-12

Start date

2025-04-02

Completion date

Unknown

Last updated

2026-03-09

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

circadian disruption

Interventions

None listed

Eligibility

Age

18 Years to 64 Years

Inclusion criteria

Inclusion criteria: Inclusion criteria for shift workers: • Health care sector or non-health care shift worker • Employed or self-employed • 21 years or older • Working hours: >= 24 h/ week • Shift work duration > 3 years and currently doing night shifts • 4 or more (rotating) night shifts/month (night shift defined as a work schedule  that involves working at least 3 hours between 00:00 and 5:00), at least 2  consecutive nights/month Inclusion criteria non-shift workers:  • Health care sector or non-health care work • Employed or self-employed • 21 years or older • Working hours: >= 24 h/ week • No night shift or rotating shift work in the last 5 years • No history of night shift or rotating shift work for more than 5 years

Exclusion criteria

Exclusion criteria: Exclusion criteria for shift workers and non-shift workers • Pregnancy • Lactation period • BMI of 40 or above • Present treatment of a disease e.g. cancer radio- or chemotherapy • Chronic diseases if in an ongoing therapy but not after a remission (renal failure, active hepatitis, cirrhosis, myocardial infarction, chronic obstructive pulmonary disease and cancer) • Immunodeficiency syndrome, any acute episode of auto-immune or auto-inflammatory diseases (e.g., type-1 diabetes, multiple sclerosis, lupus, rheumatoid arthritis) and acute episodes of atopic diseases (atopic dermatitis, asthma, type 1 allergies such as hay fever) • Bariatric surgery • Antibiotics in the last month • Participation in another human trial • No literacy in Dutch (not able to speak and read Dutch)

Design outcomes

Primary

Measure	Time frame
The main study parameters are lifestyle factors (sociodemographic background & environment, shift schedules & work activities, sleeping behaviour, diet, quality of life, lifestyle and physical activity, health, literacy, and interests in ways to change lifestyle), body composition, biomarkers (urine, faeces, blood, hair), smell and taste ability, food preferences and perceptions and dietary behaviour. The biomarker hs-CRP is taken is primary outcome for the sample size estimation.	—

Measure

Time frame

The main study parameters are lifestyle factors (sociodemographic background & environment, shift schedules & work activities, sleeping behaviour, diet, quality of life, lifestyle and physical activity, health, literacy, and interests in ways to change lifestyle), body composition, biomarkers (urine, faeces, blood, hair), smell and taste ability, food preferences and perceptions and dietary behaviour. The biomarker hs-CRP is taken is primary outcome for the sample size estimation.

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Countries

Netherlands

Contacts

Public ContactD.A. Lucassen

Wageningen Universiteit

promis@wur.nl

Outcome results