Table 2. Measures of Health Care Use, by Those Enrolled and Not Enrolled in the QMB Program, and Differences.
| Variable | Enrolled in QMB | Not Enrolled in QMB | Difference | |||
|---|---|---|---|---|---|---|
|
|
|
|
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| Mean | Standard Deviation | Mean | Standard Deviation | Mean | Standard Deviation | |
| Access-to-Care Measures | ||||||
| Any Physician Charges | 0.848 | 0.015 | 0.721 | 0.016 | 0.127 | 0.022 |
| Any Part B Charges | 0.856 | 0.014 | 0.725 | 0.016 | 0.131 | 0.021 |
| Any Part A Charges | 0.243 | 0.017 | 0.162 | 0.013 | 0.081 | 0.022 |
| Intensity-of-Use Measures | ||||||
| In Physician Charges | 7.243 | 0.063 | 6.746 | 0.065 | 0.497 | 0.091 |
| In Part B Charges | 7.523 | 0.064 | 7.012 | 0.068 | 0.511 | 0.093 |
| In Part A Charges | 9.228 | 0.079 | 9.126 | 0.090 | 0.102 | 0.120 |
NOTE: QMB is qualified Medicare beneficiary.
SOURCE: Parente, S., and Evans, W., Project HOPE, Bethesda, MD, 1999.