The purpose of the study is to test the impact of a multilevel workplace intervention (hospital-wide sales ban on sugar-sweetened beverages (SSBs) and individual-level brief counseling) on employee health.
This double-randomized controlled trial of a multilevel workplace intervention that combines an employer-sponsored sales ban on sugar-sweetened beverages (SSBs) with brief counseling to support reduced consumption will test how well each intervention works alone, whether they work better in combination than separately, and whether or not changes in SSB cravings mediate these effects. Sutter Health worksites will be randomly assigned to either a control condition or to implement a sales ban on SSBs. Within all sites, employees will be randomized to receive/not receive a brief counseling intervention focused on reducing SSB consumption. Participants will complete self-report questionnaires, give blood samples, and provide measurements of waist circumference, height, and weight. These data will be analyzed to determine the effects of the interventions, both separately and in combination.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
NONE
Enrollment
700
Environmental Intervention. The hospital food services will replace sugary drinks with non-sugar added alternative beverages throughout the campus.
Participants receive single-session brief intervention, which is an intervention that uses motivational interviewing, and helps participants understand amount and effect of their baseline SSB intake, identify realistic goals for reduction and overcoming obstacles.
Sutter Health/California Pacific Medical Center Research Institute
San Francisco, California, United States
Change in Abdominal Adiposity (Waist Circumference)
Waist circumference in centimeters (using method from Multi-Ethnic Study of Atherosclerosis). The study will measure the change between baseline and 12 month Abdominal Adiposity measurements.
Time frame: Baseline and 12 Months
Change in Insulin Sensitivity (HOMA)
Insulin sensitivity will be calculated using the homeostatic model assessment (HOMA). The equation for HOMA is fasting insulin (microU/L) x fasting glucose (nmol/L)/22.5. The study will measure the change between baseline and 12 month HOMA.
Time frame: Baseline and 12 Months
Change in Body Mass Index (BMI)
Body Mass Index \[BMI\] measured using height in centimeters and weight in kilograms to be calculated into BMI. The study will measure the change between baseline and 12 month BMI.
Time frame: Baseline and 12 Months
Change in Quantity of SSB Consumption
Fluid ounces of SSB consumed per day using Automated Self-Administered Dietary Assessment Tool (ASA-24) and Beverage Intake Questionnaire (BEV-Q). The study will measure the change between baseline and 12 month SSB consumption quantity.
Time frame: Baseline and 12 Months
Change in Lipid Profile Measurements
HDL, LDL, total cholesterol, triglycerides, and triglycerides:HDL ratio (calculated). The study will measure the change between baseline and 12 month individual lipid profile measurements (E.g., HDL, LDL, total cholesterol, triglycerides, and triglycerides:HDL ratio).
Time frame: Baseline and 12 Months
Change in ApoB Levels
Blood level of ApoB. The study will measure the change between baseline and 12 month ApoB blood levels.
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Time frame: Baseline and 12 Months
Change in Fasting insulin Levels
Fasting blood level of insulin. The study will measure the change between baseline and 12 month Fasting insulin blood levels.
Time frame: Baseline and 12 Months
Change in Fasting Glucose Levels
Fasting blood level of glucose. The study will measure the change between baseline and 12 month Fasting Glucose blood levels.
Time frame: Baseline and 12 Months