Table 6. Effect of the Utah Prepaid Mental Health Plan on Outpatient Mental Health Expenditures: Difference Between Capitated and Non-Capitated Sites (per Beneficiary per Month).
| Time Period | Estimated Effect | 95-Percent Confidence Interval Lower/Upper) |
Significance |
|---|---|---|---|
| Middle Period Versus Pre-Capitation Period | 1.9946 | -.4976/4.4867 | .116 |
| Late Period Versus Pre-Capitation Period | 1.9014 | -1.7789/5.5816 | .309 |
| Late Period Versus Middle Period | -.0932 | -2.3075/2.1210 | .934 |
| Time Trend | -.4046 | -1.1798/.3706 | .304 |
NOTE: Pre-capitation period is July 1, 1988–June 30, 1991; middle (partial capitation) period is July 1, 1991–December 31, 1993; and late (full capitation) period is January 1, 1994–December 31, 1994.
SOURCES: Stoner, T., Manning, W., Christianson, J., University of Minnesota; Gray, D., University of Utah; and Marriott, S., Research Consulting, 1996.