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Updated: Jun 8, 2026

Assessment of Child Anthropometry in a Large Epidemiologic Study
Published on: February 2, 2017
An observational study of an employer intervention for children's healthy weight behaviors
Martín-J Sepúlveda1, Chifung Lu, Stewart Sill
1IBM Corporation, Box 100, Route 100, Somers, NY 10589, USA. mjs851@us.ibm.com
Insights
A workplace wellness program with a cash incentive improved healthy weight behaviors in families. The intervention successfully increased physical activity and healthy meals while reducing screen time in parents and children.
Area of Science:
- Public Health
- Behavioral Science
- Health Promotion
Background:
- Childhood obesity is a significant public health concern.
- Workplace wellness programs can play a role in promoting healthy lifestyles.
- Short-term interventions may be effective in initiating behavior change.
Purpose of the Study:
- To evaluate the effectiveness of a workplace intervention in improving healthy weight behaviors among parents and children.
- To assess the impact of a cash incentive on participation and adherence to a wellness program.
Main Methods:
- An observational study using a preprogram/postprogram design.
- A 12-week program focused on family food planning, physical activity, and screen time.
- Self-reported data collected to measure changes in targeted behaviors.
Main Results:
- Significant improvements were observed in family physical activity levels, with participation in activity >3 times/week increasing by 17.1 percentage points.
- The proportion of families eating healthy dinners ≥5 days/week increased by 11.8 percentage points.
- Reductions in entertainment screen time were reported, with <1 hour/day increasing by 8.3 pp for children and 6.1 pp for adults.
Conclusions:
- A web-based intervention combined with a cash incentive can effectively improve healthy weight behaviors in children and parents.
- Employers can play a vital role in community-based obesity prevention strategies.
- Future research should incorporate experimental designs and biometric data for stronger evidence.
Objective:
This observational study was undertaken to assess whether changes in healthy weight behaviors could be advanced in a short-term intervention involving parents and children at IBM.
Methods:
IBM's Children's Health Rebate offered a cash incentive for parents to complete a 12-week program of self-selected activities in family food planning and meals, family physical activity, and sedentary time related to electronic entertainment ("screen time"). A preprogram/postprogram comparison of self-reported activities was used to assess behavior change.
Results:
A total of 22,265 (52.3%) employees elected to participate, 11,631 (52.2%) of whom completed all program requirements and earned a $150 cash rebate. Families completing the program reported significant changes in levels of physical activity, amount of entertainment screen time, and proportion of healthy meals. For example, family physical activity >3 times per week increased by 17.1 percentage points (from 23.2% to 40.3%), eating healthy dinners ≥ 5 days/week increased by 11.8 percentage points (from 74.9% to 86.7%), and entertainment screen time <1 hour/day increased by 8.3 percentage points for children (from 22.4% to 30.7%) and by 6.1 percentage points for adults (from 18.1% to 24.2%).
Conclusions:
The results of this short-term observational study suggest that healthy weight behaviors in children, adolescents, and parents can be improved by using a Web-based intervention linked with a cash incentive. The results also show that employers can activate parents and support a role for employers in community-based strategies for obesity prevention in children. Experimental designs with biometric data would strengthen the suggestion of positive impact.
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