Corporate wellness ROI claims rest on conflicting evidence. A 2010 Health Affairs meta-analysis by Harvard researchers Katherine Baicker, David Cutler and Zirui Song found about $3.27 in medical cost savings per dollar spent. A 2019 randomized trial of nearly 5,000 University of Illinois employees found no significant effect on medical spending, productivity or health behaviors after more than two years. Vendors should claim results for their own program, not the category.
Last updated: October 24, 2026. This article is communications guidance, not legal or financial advice.
In this guide
- Where does the $3.27 per dollar claim come from?
- What did the Illinois randomized trial find?
- Which wellness claims can a vendor support?
- How should PR teams present wellness program results?
- Frequently asked questions
Where does the $3.27 per dollar claim come from?
The $3.27 figure comes from a 2010 meta-analysis published in Health Affairs, volume 29, issue 2, by Katherine Baicker, David Cutler and Zirui Song. The authors described it as a critical meta-analysis of the literature on workplace wellness costs and savings, focused on studies with particularly rigorous methods. They reported that medical costs fell about $3.27 for every dollar spent on wellness programs, and that absenteeism costs fell about $2.73 per dollar.
The abstract is available through Harvard's DASH repository. Many program vendors still cite these two numbers as category-wide proof. The study pooled results from many different programs, so the average does not describe what any single vendor's program delivers.
What did the Illinois randomized trial find?
The Illinois Workplace Wellness Study found that a comprehensive program raised health screening rates but produced no significant effects on medical spending, productivity, other health behaviors or self-reported health after more than two years. Economists Damon Jones, David Molitor and Julian Reif published the results in the Quarterly Journal of Economics in 2019. They randomly assigned program eligibility and financial incentives for nearly 5,000 employees at a large employer, and they noted that wellness programs cover more than 50 million U.S. workers. Their published abstract says their 95% confidence intervals rule out 84% of previous estimates on medical spending and absenteeism.
A companion randomized clinical trial by Julian Reif and colleagues, listed on the NBER project results page, covered 4,834 participants. It found no significant effects on biometrics, medical diagnoses or medical use after 12 or 24 months. It did find that more employees reported having a primary care physician, and that employees' beliefs about their own health improved.
The earlier working paper also reported that more than 56 percent of eligible employees in the treatment group took part in the program, according to the NBER working paper. High participation did not translate into measurable savings in that trial.
Which wellness claims can a vendor support?
A vendor can support claims that match evidence it actually holds, and the strongest category-level evidence points toward engagement and screening, not savings. The table below compares four common claims with what the two bodies of research show. It is an illustrative framework, not legal or financial advice.
| Common claim | What the evidence shows | Safer framing |
|---|---|---|
| "Saves $3 for every $1 spent" | A 2010 meta-analysis average across many programs, which the 2019 Illinois randomized trial did not reproduce for its own program | Cite the program's own results, with the comparison group and time period named |
| "Improves employee health outcomes" | The Illinois trials found no significant effects on measured biometrics or diagnoses | Report outcomes the program measured, and avoid category-wide health claims |
| "Increases screening and participation" | The Illinois study found screening rates rose, and over 56 percent of eligible employees took part | Quote the program's own participation and screening data |
| "Helps employees connect with primary care" | A companion Illinois trial found more employees reporting a primary care physician | Attribute the finding to that trial and describe the setting accurately |
How should PR teams present wellness program results?
PR teams should present wellness results by naming the study design, the comparison group and the time period, because a savings figure with no control group invites the same scrutiny the Illinois trial applied to the category. A press release that says "proven savings" and links to a vendor's own pre-and-post data is easy for a journalist or an employer's finance team to challenge.
Three habits reduce that risk. First, separate engagement metrics from financial metrics, since engagement is much easier to document. Second, state who ran the analysis and whether it was independent. Third, treat a 2010 average as background, not as proof for a new program.
Related reading covers wellness PR regulatory review, the difference between health and wellness marketing, and how PR builds trust for wellness brands. Healthcare and benefits audiences are covered under healthcare PR.
The two studies disagree because they answer different questions: one averages many programs, the other randomizes one. A wellness vendor that reports its own controlled results will be believed more than one that borrows a category average.
Frequently asked questions
Do corporate wellness programs save money?
The evidence conflicts. A 2010 meta-analysis reported about $3.27 in medical savings per dollar spent, while a 2019 randomized trial of nearly 5,000 Illinois employees found no significant effect on medical spending after more than two years.
Where does the $3.27 figure come from?
From a 2010 Health Affairs meta-analysis by Katherine Baicker, David Cutler and Zirui Song, which pooled results from many different programs.
What did the Illinois Workplace Wellness Study find?
Screening rates rose, but there were no significant effects on medical spending, productivity, other health behaviors or self-reported health.
How should a wellness vendor word its ROI claims?
Claim results for its own program, name the comparison group and time period, separate engagement from financial metrics, and say who ran the analysis.
