Table 3 Description of HealthWorks Intervention and Summary of Two-Year Process Measures Findings

Dietary Environment

Cafeteria Interventions

Change food offerings to bring overall product mix to > 50% calorie smart foods and beverages.

Goal achieved at all sites, with an overall mean of 53% of foods and beverages rated as calorie smart at 24 months, compared to 45.8% at baseline (50%, 53%, and 56% by site, compared to 49%, 43%, and 46% at baseline, respectively).

Reduce price of calorie smart items by 15% and increase price of comparable non-calorie smart items by 15%.

Not successfully implemented at any of the intervention sites.

Vending Machine Interventions

Change vending food offerings to bring overall product mix to > 50% calorie smart foods and beverages.

Goal achieved at 2 of 3 sites, with 63% and 68% of available vending machine foods and beverages rated as calorie smart at these sites at 24 months, compared to 40% and 45% at baseline, respectively. The remaining site achieved 48% calorie smart foods and beverages in vending machines at 24 months, compared to 35% at baseline.

Reduce price of calorie smart items by 15% and increase price of comparable non-calorie smart items by 15%.

Not successfully implemented at any of the intervention sites.

Physical Activity Environment

Stairwell Enhancement Intervention

Increase stairwell use by enhancing stairwell attractiveness with art or inspirational posters, and point of entry signage.

Goal fully met at the 2 of 3 sites via music, art and film or motivational poster placement in stairwells, and signage at points of stair entry or at elevator vs. stair choice points. The remaining site complied only with placement of signage at elevator vs. stair choice points.

Pedometer Intervention

Promote walking through pedometer use and participation in the 10,000 steps a day program and by offering up to 5 walking challenges and up to 4 combined activity/weighing challenges and facilitating the formation of ongoing walking clubs.

Component successfully delivered at all sites, which offered the recommended number of challenges during the study period.

Body Weight Tracking Environment

Scale Access Intervention

Promote regular self-weighing through placement of scales with BMI charts, weight lockboxes, and tracking forms at various locations in the worksite, as well as offering up to 3 weighing challenges.

Component successfully implemented at all three intervention sites, which each placed 4 scales and offered up to 3 weighing challenges and four combination weighing/activity challenges during the study period. Intervention site participants increased self-weighing frequency over time relative to control site participants (p < 0.0001).

Health Media Environment

Worksite Wide Publicity

Promote the intervention by posting healthy eating and activity information in multiple settings around the worksite.

Posters on walls and in display cases, table signs in the cafeteria, calorie signs in food lines, and signs on vending machines were successfully placed at all sites. Study staff achieved a 279.3% increase in media presence at intervention sites, relative to 142.2% increase in control sites (p < 0.10).

Newsletters

Send monthly newsletters to promote positive behavioral messages and report news in the obesity field, progress data, and resource information.

Study staff successfully sent 24 monthly newsletters by email (pdf format) at all intervention sites.