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Many still wrong in their DM savings calculations


How is it that well-informed people can look at the same data and come up with dramatically different conclusions and action implications? It turns on whether the analysis is done by biostatisticians looking at utilization data in an academically rigorous way, or by actuaries and benefits consultants looking at overall financial trends in a pre-post manner.

What is disturbing is that CMS's conclusion also mirrors that of the Congressional Budget Office and the RAND Corp. Yet, other organizations and consultants are finding enough value to justify contract extensions and expansions. Paradoxically, one such announcement by Independence Blue Cross was made within hours of the CMS announcement.

So how is it that well-informed people can look at the same data and come up with dramatically different conclusions and action implications?

Changing a few key assumptions makes a huge difference. One Mercer presentation showed that just changing the outlier filter could make results vary 20-fold.

Vendors and plans seem caught in the crossfire, forced by large benefits consulting firms to promise ROIs in order to get employer contracts, and forced later by their employer customers to come up with that same number in an annual reconciliation. Yet vendors know the savings are modest and that the real impact is on customer loyalty, quality and member satisfaction. They achieve implausibly high ROIs only by taking advantage of benefits consultants' lack of experience in measurement.


CMS and RAND notwithstanding, if a payer contracts with a qualified vendor, doesn't count asthma in the savings calculations, works together with the vendor to minimize that all-important "time to contact" (currently at about 105 days from diagnosis until first outreach), and gets a good price, the program will move the needle enough to show noticeable improvement in avoided events-as measured by changes in populationwide utilization in key event rates such as heart attacks-and hence, earn a positive ROI. Even CMS, had they avoided some head-scratching impediments to implementation (like not giving the vendors phone numbers), may well have shown significant event reduction.

By contrast, the stand-alone pre-post actuarial approach is discredited in the Disease Management Purchasing Consortium's Ultimate Guide to Outcomes Measurement as not appropriate for measuring DM. Since I was the person who, according to MHE, invented pre-post population-based financial measurement, it's not like I am attacking someone here. I was wrong, and many other people still are.

The only remaining argument in favor of the actuarial approach is that payers need to show the CFOs and their customers a number. That "number" if calculated fallaciously, means nothing. The field would be much better off showing modest returns, rather than cave into demands to show large savings numbers which don't mesh with any of the academic literature.

Al Lewis is president of Wellesley, Mass.-based Disease Management Purchasing Consortium and is an editorial advisor for MHE.

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