179776 How Do Self-reported Health Care Utilization and Absenteeism Measures Compare to Administrative Data?

Tuesday, October 28, 2008

Meghan E. Short, BA , Health and Productivity Research, Thomson Medstat, Washington, DC
Xiaofei Pei, PhD , Health and Productivity Research, Thomson Medstat, Washington, DC
Ron Z. Goetzel, PhD , Institute for Health and Productivity Studies, Emory University, Rollins School of Public Health, Washington, DC
Maryam J. Tabrizi, MS, CHES , Health and Productivity Research, Thomson Medstat, Washington, DC
Ronald J. Ozminkowski, PhD , Consulting Economist, Ann Arbor, MI
In health promotion, researchers often rely upon self-reported health risk, utilization and productivity measures, usually through the administration of a health risk questionnaire (HRA) to assess population health. Self-reported measures can be unreliable but are useful when access to actual administrative data (medical claims and absenteeism records) are unavailable or expensive to analyze. In a study funded by NHLBI, self-reported healthcare utilization and absenteeism were compared to administrative records to determine the validity of self-reported responses. HRAs were distributed to employees at The Dow Chemical Company, whose medical claims and administrative absenteeism data were also available. Monthly and yearly doctors' visits, emergency room visits, hospital admissions and annual absent days were compared for the same individual using HRA and administrative data in 2005 and 2006, respectively. Percent agreement, over-reporting, under-reporting and Pearson's correlations determined the validity and strength of the relationship between self-reported HRA responses and claims data. Results were stratified by age, gender, race/ethnicity, job type, education, body mass index (BMI) and the Charlson Co-morbidity Index (CCI), to determine statistical significance in characteristics of the sample. The majority of participants' self-reported estimates of prior year's healthcare utilization and absenteeism correctly matched the data from administrative claims. Percent agreement for monthly claims was higher than for yearly claims. Males were more likely to have agreement for the outcomes compared to females. Overall, this comparison can be useful for researchers who rely upon self-reported HRA responses as a gauge of employee healthcare utilization and absenteeism rates when administrative claims are unavailable.

Learning Objectives:
Describe the pros and cons of using self-reported data versus administrative data to measure health status Articulate the accuracy of using self-reported data in a health intervention program Discuss implications of study finding for the use of self-report data as a proxy in the absence of administrative data

Presenting author's disclosure statement:

Qualified on the content I am responsible for because: I have completed many of the analyses responsible for this study. I feel that I am very familiar with the data involved and could accurately answer any questions that may arise. Additionally, I will be responsible for writing a manuscript based on these results.
Any relevant financial relationships? No

I agree to comply with the American Public Health Association Conflict of Interest and Commercial Support Guidelines, and to disclose to the participants any off-label or experimental uses of a commercial product or service discussed in my presentation.