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Work, Weight, and Wellness Program: The 3W Program

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00123019
Recruitment Status : Completed
First Posted : July 22, 2005
Last Update Posted : July 12, 2016
Information provided by:
National Heart, Lung, and Blood Institute (NHLBI)

Brief Summary:
The purpose of this study is to increase physical activity, improve diet, and reduce obesity of hotel employees.

Condition or disease Intervention/treatment Phase
Cardiovascular Diseases Heart Diseases Obesity Behavioral: Exercise and diet Behavioral: Diet, Weight Reducing Behavioral: Level 1 Behavioral: Level 2 Not Applicable

Detailed Description:


In Hawaii, as in many other states, tourism is a large industry. Most hotel jobs require little education or training, and hotels employ large numbers of persons and immigrants with low socioeconomic status. Hawaii, with the world's most ethnically diverse population, has high rates of obesity and diabetes, particularly among those of Polynesian ancestry (about 20-22% of the population). This study will include a comprehensive lifestyle change program delivered through worksites in partnership with a large health care system.


Thirty-one hotels employing 11,000 persons on the island of Oahu are pair-matched. One member of each pair is assigned to a high intensity intervention and the other to a low intensity intervention. Both interventions are intended to reduce BMI through an emphasis on a healthy diet and increased physical activity. All employees are assessed annually for three consecutive years. The assessment includes a survey on lifestyle habits, stage of change, and attitudes toward weight, as well as measurement of BMI. The high intensity intervention hotels receive the following: 1) environmental changes to support lifestyle change and obesity control; 2) worksite based groups that offer state-of-the-art behavioral interventions; and 3) after-hours "Re-Invent Yourself" groups designed for persons who want to lose at least 25 pounds and are highly committed to doing it. These interventions incorporate all the elements that produce sustained weight loss and an innovative decision tutorial based on decision theory. The primary outcome is the mean difference between hotels in the high intensity and low intensity interventions in change in BMI from baseline to 12 and 24 months. Secondary outcomes address effects of the intervention on ethnic and occupational subgroups stage of change, absentee days, and worker compensation claims.

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Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 6100 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Prevention
Official Title: Overweight and Obesity Control in Worksites
Study Start Date : September 2004
Actual Primary Completion Date : October 2008
Actual Study Completion Date : October 2008

Arm Intervention/treatment
Active Comparator: 1
Minimal intervention; annual weight/waist assessment, questionnaire, and advice
Behavioral: Exercise and diet
Advice and measurement only

Behavioral: Level 1
Annual assessment of weight and waist circumference, questionnaire on work, health issues, advice on diet, physical activity and other health issues.

Experimental: 2
Intensive intervention. All arm 1 activities plus ongoing environmental and group interventions in worksite for two years.
Behavioral: Diet, Weight Reducing
Measurement, advice, environmental and behavioral group interventions

Behavioral: Level 2
All Level 1 activities plus ongoing environmental interventions in worksite and weight management groups in worksite over a 24 month period.

Primary Outcome Measures :
  1. Change in BMI [ Time Frame: Measured at Months 12 and 24 ]

Secondary Outcome Measures :
  1. Effects of the intervention on ethnic and occupational subgroups, stage of change, and other issues [ Time Frame: Measured at Months 12 and 24 ]

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Employed at the hotel

Exclusion Criteria:

  • Unable to read English, Korean, or Chinese

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00123019

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United States, Hawaii
Kaiser Permanente Center for Health Research, Hawaii
Honolulu, Hawaii, United States, 96713
Sponsors and Collaborators
National Heart, Lung, and Blood Institute (NHLBI)
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Study Chair: Thomas Vogt, MD, MPH Kaiser Permanente
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Responsible Party: Thomas M. Vogt, MD, MPH, Kaiser Permanente Center for Health Research, Hawaii Identifier: NCT00123019    
Obsolete Identifiers: NCT00119808
Other Study ID Numbers: 230
R01HL079505 ( U.S. NIH Grant/Contract )
First Posted: July 22, 2005    Key Record Dates
Last Update Posted: July 12, 2016
Last Verified: February 2009
Additional relevant MeSH terms:
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Cardiovascular Diseases
Heart Diseases
Nutrition Disorders
Body Weight