SOLUCIA, INC. 1 An Actuarial Perspective on Disease Management ROI Measurement May 10, 2006.

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Presentation transcript:

SOLUCIA, INC. 1 An Actuarial Perspective on Disease Management ROI Measurement May 10, 2006

SOLUCIA, INC. 2 Introduction Ian Duncan, FSA FIA FCIA MAAA. President, Solucia Inc. Solucia Inc. is a healthcare consulting company based in Hartford, CT solving client problems by: Application of sound financial and actuarial analysis; Data management/predictive modeling; Care Management financial modeling and outcomes analysis; Development of software applications to automate care management functions and reporting. Significant practice in DM savings validation/ certification.

SOLUCIA, INC. 3 Agenda State of DM program financial outcomes measurement. The Society of Actuaries study of DM outcomes measurement. Some promising techniques.

SOLUCIA, INC. 4 “Testing actuarial methods for DM savings evaluation” Authors: Henry Dove, PhD, Ian Duncan FSA MAAA and Rebecca Owen, FSA MAAA FCA. Sponsored by the Society of Actuaries Health Section.

SOLUCIA, INC. 5 practice/health/research/eval-results-care-man-int/ practice/health/research/eval-results-care-man-int/ This paper is part of a larger study sponsored by the Society of Actuaries Health Section. Study is entitled: “Evaluating the Results of Care Management Interventions: Comparative Analysis of Different Outcomes Measures.” Study responds to the growing involvement of actuaries in the area of DM outcomes evaluation. Other papers may be found on the SOA website at: practice/health/research/eval-results-care-man-int/ practice/health/research/eval-results-care-man-int/ practice/health/research/eval-results-care-man-int/ practice/health/research/eval-results-care-man-int/ This paper is part of a larger study sponsored by the Society of Actuaries Health Section. Study is entitled: “Evaluating the Results of Care Management Interventions: Comparative Analysis of Different Outcomes Measures.” Study responds to the growing involvement of actuaries in the area of DM outcomes evaluation. Other papers may be found on the SOA website at: practice/health/research/eval-results-care-man-int/ practice/health/research/eval-results-care-man-int/ Background to our research

SOLUCIA, INC. 6 Prevalent Industry Methodology The prevalent industry methodology is a trend-adjusted historical control (pre- post) methodology. Trend = An actuarial concept. Simple example:

SOLUCIA, INC. 7 Background to our research What is the purpose of the trend paper? In any pre-post study in which trend is used to adjust historical data, the analyst requires an assumption for the trend adjustment variable. Trend isn’t well-understood, despite its prevalence. Chronic population trend is not a valid assumption because it is affected by the intervention. Different sources of the trend adjustment variable are used, including population trend and non-chronic population trend. Our study: how valid are these estimators? How well do they estimate chronic trend in the absence of interventions?

SOLUCIA, INC. 8 Trend Assumptions: Definition Definition of Trend:

SOLUCIA, INC. 9 Trend Assumptions: Definition Trend Example Claims, year 2: $1,000,000 Member Months, year 2: 8,000 PMPM Year 2: $ Claims, year 1: $ 800,000 Member Months, year 1: 7,000 PMPM Year 1: $ TREND: $ = 9.4% $114.29

SOLUCIA, INC. 10 Trend Assumptions: Before we start Remember: many studies use non-chronic trend as an estimate of chronic trend, absent intervention. Which of the following do you think is True? Chronic Member Trend is HIGHER than Non-chronic Member Trend. Chronic and Non-chronic Trends are about the SAME Chronic Member Trend is LOWER than Non- chronic Member Trend.

SOLUCIA, INC. 11 Data/Methods Calculated Chronic, Non-chronic and population trends for 1999 through Ingenix data set – 1.5 million commercially insured members. Chronic members identified with: Asthma COPD CHF Diabetes IHD

SOLUCIA, INC. 12 Trend Results Average 3-year trends* Chronic 5.6% Non-chronic13.8% Population16.0% * Prospective chronic identification

SOLUCIA, INC. 13 Interaction of Chronic Disease and Trend Costs and Trends using “Prospective chronic” identification Less than 1/2

SOLUCIA, INC. 14 Trend Results: Alternatives Adjusted for high-cost outliers Average 3-year trends* Chronic 4.9% Non-chronic13.9% Population16.2% * Prospective chronic identification

SOLUCIA, INC. 15 Trend Results: Alternatives Adjusted for chronic service mix* Non-chronic, unadjusted 13.8% Non-chronic, adjusted 13.2% * Prospective chronic identification

SOLUCIA, INC. 16 Trend Results: Alternatives Re-qualification

SOLUCIA, INC. 17 Trend Results: Alternatives Effect of Re-qualification on Trend

SOLUCIA, INC. 18 Chronic vs. Non-chronic trend with retrospective classification Trend Results: Alternatives

SOLUCIA, INC. 19 Application of Risk Adjustment (DxCG prospective score) Trend Results: Alternatives Average 3-year trends* Chronic12.5% Non-chronic11.9% * Prospective chronic identification

SOLUCIA, INC. 20 Conclusions Trend has a large potential impact on the results of an adjusted pre- post study. When chronic members are identified using a prospective methodology, neither the non-chronic nor population trend is particularly close to chronic population trend. In particular, the chronic trend is lower than either the non-chronic or population trend. The authors term this effect “Migration Bias”.

SOLUCIA, INC. 21 Conclusions (contd.) Some obvious adjustments (for catastrophic claims and for differences in services) do not affect the difference much. Using a retroactive identification algorithm, chronic, non-chronic and population trends are much closer. Adjusting PMPM claims for changes in risk-score also causes trends to be more comparable.

SOLUCIA, INC. 22 Implications for DM purchasers Trend matters a lot. In some circumstances, migration can result in the use of inappropriate trend which, in turn, can overstate the calculated savings. Ask questions about how populations are identified and how trend is calculated. Effect of bias may be corrected by risk- adjustment or retrospective identification; also helpful is re-qualification.

SOLUCIA, INC. 23 Paper 8: Practical Health Plan Application Partnered with Highmark, Inc. 2-1/2 million members covered by a DM program administered by Health Dialog, Inc. Focused mostly on 200,000-member Medicare Advantage members. Study period 10/1/2001-9/30/2003.

SOLUCIA, INC. 24 Base-case plus 5 alternatives. Alternative 1: Cohort Study. Alternative 2: 3 different chronic identification algorithms. Alternative 3: Retrospective Identification of Chronic Members. Alternative 4: No continuous eligibility requirement. Alternative 5: Commercial HMO/POS population. Paper 8: Practical Health Plan Application

SOLUCIA, INC. 25 Paper 8: Base-case analysis

SOLUCIA, INC. 26 Paper 8: Effect of Design Changing to a Cohort Design has little impact on savings

SOLUCIA, INC. 27 Paper 8: Effect of Chronic Identification Chronic Member Identification (in this case, primary Dx only) has significant effect on savings

SOLUCIA, INC. 28 Paper 8: Retrospective Identification Retrospective Chronic Member Identification avoids “migration bias” and has significant effect on savings

SOLUCIA, INC. 29 Paper 8: Continuous Eligibility Removing all waiting period criteria: 6 months prior eligibility and the 3-month post-identification waiting period.

SOLUCIA, INC. 30 Paper 8: Alternative Scenarios

SOLUCIA, INC. 31 Paper 8: Conclusions – further study Savings results can vary considerably depending on identification, method, and assumptions. Methods that identify more members/higher prevalence generally produce higher savings. In order to understand specific savings results, a great deal of information and disclosure is required. More than one assumption can be varied: we did not test multi-variate results. We continue to test other assumptions: one of these is the “no re-qualification” assumption. Many purchasers want to know the results by disease.

SOLUCIA, INC. 32 Another promising avenue Using Risk-Adjustment to adjust Trends

SOLUCIA, INC. 33 Using Predictive Modeling in DM ROI Can shed light when results are counter-intuitive Actuaries understand and are comfortable with concept. Or reinforce a message

SOLUCIA, INC. 34 Especially when the non-chronic trend is doing something different… Using Predictive Modeling in DM ROI

SOLUCIA, INC. 35 Using Predictive Modeling in DM ROI

SOLUCIA, INC. 36 Using Predictive Modeling in DM ROI Application of prior numbers Chronic Population Inpatient days, pre-program100 Inpatient days, post-program 96 Non-Chronic Population Inpatient days, pre-program100 Inpatient days, post-program 98 “Unadjusted” Savings Calculation: Inpatient days, pre-program100 Projected inpatient days, post-program 98 Actual Inpatient days, post-program 96 “Savings” due to program (days) 2

SOLUCIA, INC. 37 Using Predictive Modeling in DM ROI Application of prior numbers (contd.) Chronic Population Inpatient days, pre-program100 Inpatient days, post-program 96 Inpatient days, post-program (adjusted for change in relative risk) 98 “Unadjusted” Savings Calculation: Inpatient days, pre-program100 Projected inpatient days, post-program 103 Actual Inpatient days, post-program 98 “Savings” due to program (days) 5 Non-Chronic Population Inpatient days, pre-program100 Inpatient days, post-program 98 Inpatient days, post-program (adjusted for change in relative risk) 103

SOLUCIA, INC. 38 Effect of risk-adjustment Sometimes increases savings; more often decreases them. Example: one client reduced vendor ROI calculation from 4.6: 1.0 to 1.5: 1.0. Still positive outcome, but more believable. Actuaries/finance more comfortable with approach and results.

SOLUCIA, INC. 39 Questions? THANK YOU FOR YOUR PARTICIPATION