NCT01443156

Brief Summary

BACKGROUND. Sleep deficiency (not getting enough sleep) is widespread in American adults and can lead to many harmful health outcomes such as a higher risk of obesity, heart disease, and diabetes. Sleep deficiency can also harm cognitive performance, which refers to one's awareness and thinking ability. Sleep deficiency and sleep-related health issues are of high interest among those who have irregular and/or extended work schedules, because such schedules can interfere with normal biological rhythms of sleepiness and wakefulness. PURPOSE. This study will examine the health and cognitive effects of work schedule and sleep patterns in caregivers (such as nurses, laboratory technicians, and non-clinical hospital staff). The investigators hypothesize that the nontraditional, irregular, and extended work hours common in these professions will have adverse health and cognitive effects. The purposes of this protocol are to:

  • Enroll caregivers into a one year cohort study on the relationships among work schedule, sleep, diet, chronic disease, and cognitive performance. (A cohort study follows a group of participants over time to see how different behaviors or risk factors affect health.)
  • Collect data from caregivers on work schedule, sleep, diet, chronic disease, and cognitive performance.
  • Give personalized information and feedback to caregivers about these health factors.
  • Educate caregivers about healthy diet and exercise choices.
  • Collect saliva from caregivers for future research on the role of genes in health. (Specimen collection for genetic testing will be offered as a separate option for study participants.) RECRUITMENT. This study will use the Let's Get Healthy! health research and education program (OHSU IRB #3694) as a platform for recruitment and data collection. Caregivers will be invited to participate in a Let's Get Healthy! event and will be given information prior to the event about the cohort study. At the Let's Get Healthy! event, caregivers will first consent to the anonymous research study (OHSU IRB #3694), in which demographic and health screening data are linked to a random number. Caregivers will then have the option to consent to a cohort study, in which data are no longer anonymous but instead linked to participants' names and contact information. PROCEDURES. This cohort study piggybacks on procedures already approved for the Let's Get Healthy! program (OHSU IRB #3694). Let's Get Healthy! is a study in which participants provide anonymous data at health fairs through any or all of the following manners: short computer surveys on cancer awareness, risk factors, and family history (with immediate feedback given on cancer risk and prevention); short computer surveys on diet and sleep patterns (with immediate printed feedback given); health screening measurements (blood pressure, height, weight, waist circumference, body mass index, body fat percentage); a finger stick to assess sugar and fat levels in blood; and a mouthwash swish to provide a saliva specimen. However, this cohort study (OHSU IRB #7542) will make the following changes and additions:
  • Personal health data, instead of being anonymous, will be linked to participants' names and contact information (for follow-up data collection).
  • Let's Get Healthy! events will include cognitive performance tests, a preventative-care survey, and a work schedule survey.
  • Participants will provide data not only at an initial Let's Get Healthy! event, but also at a follow-up event and during the time period between events. Between events, participants will do the surveys on work schedule, diet, and sleep, and they will complete cognitive performance tests.
  • There will be a separate consent process for participants to provide a fully identifiable saliva specimen. DATA ANALYSIS. Participants' health data will be fully identifiable at the time of data collection but will be coded and stored in a physically separate location from the identifiable information. The link between identifiable information and coded health information will be stored on a password protected computer, and all identifiable information will be deleted upon completion of data analyses. Data will be analyzed to explore relationships among work schedule, sleep, diet, body composition, metabolic health, chronic disease, and cognitive performance in caregivers. Genetic relationships with these factors will be analyzed in those who provided a saliva specimen during entry visit data collection.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
211

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Jan 2012

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

September 20, 2011

Completed
9 days until next milestone

First Posted

Study publicly available on registry

September 29, 2011

Completed
3 months until next milestone

Study Start

First participant enrolled

January 1, 2012

Completed
1.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 1, 2013

Completed
11 months until next milestone

Study Completion

Last participant's last visit for all outcomes

January 1, 2014

Completed
Last Updated

November 2, 2023

Status Verified

October 1, 2023

Enrollment Period

1.1 years

First QC Date

September 20, 2011

Last Update Submit

October 31, 2023

Conditions

Keywords

DietSleep deficiencyCancerObesityDiabetesShift workWork scheduleCardiovascular diseaseBody compositionBody mass indexBody fat percentage

Outcome Measures

Primary Outcomes (4)

  • Cognitive performance

    Brief computerized tasks of attention, vigilance, and memory.

    Up to one year

  • Body Composition

    Height, weight, waist circumference, body fat percentage, body mass index

    Up to one year

  • Diet

    Brief computerized survey on fruit, vegetable, and fat intake.

    Up to one year

  • Work Schedule

    Survey on the quantity and distribution of work hours.

    Up to one year

Secondary Outcomes (4)

  • Blood Pressure

    Up to one year

  • Blood cholesterol, glucose, triglycerides

    Up to one year

  • Breast, skin, and lung cancer prevention behaviors and knowledge

    Up to one year

  • Preventive care habits

    Up to one year

Study Arms (1)

Caregivers

Employees at a local medical facility, including (but not limited to): nurses, laboratory technicians, non-clinical hospital staff

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Cohort participants will be recruited from employees at a local health care center. Job categories may include, but are not limited to: * Administrative services * Clinical services (radiology, laboratory, pharmacy, etc.) * Clinical support services (aide, clerk, processing, records, etc.) * Practitioner (physician, physician assistant, nurse practitioner, etc.) * Non-clinical services (food, nutrition, housekeeping, etc.) * Nursing services-registered nurse * Nursing services-certified nursing assistant * Rehabilitative services (occupational therapy, speech therapy, physical therapy, etc.)

You may qualify if:

  • Employed caregiver in a hospital setting
  • years of age or older
  • Completion of minimal set of stations (see below, section III.d.)
  • Consent given electronically

You may not qualify if:

  • Declining to consent

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

St. Charles Medical Center

Bend, Oregon, 97701, United States

Location

Biospecimen

Retention: SAMPLES WITH DNA

Mouthwash swish containing buccal cells.

MeSH Terms

Conditions

ObesityDiabetes MellitusNeoplasmsMetabolic SyndromeSleep DeprivationCardiovascular Diseases

Condition Hierarchy (Ancestors)

OverweightOvernutritionNutrition DisordersNutritional and Metabolic DiseasesBody WeightSigns and SymptomsPathological Conditions, Signs and SymptomsGlucose Metabolism DisordersMetabolic DiseasesEndocrine System DiseasesInsulin ResistanceHyperinsulinismDyssomniasSleep Wake DisordersNervous System DiseasesNeurologic ManifestationsMental Disorders

Study Officials

  • Jackilen Shannon, PhD

    Oregon Health and Science University

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Scientist

Study Record Dates

First Submitted

September 20, 2011

First Posted

September 29, 2011

Study Start

January 1, 2012

Primary Completion

February 1, 2013

Study Completion

January 1, 2014

Last Updated

November 2, 2023

Record last verified: 2023-10

Locations