Pharmacy Benefit Management Institute (PBMI) conducted its annual drug benefit plan design survey of U.S. employers from May through June 2009. PBMI supplemented its database of U.S. employers with a list of subscribers to Employee Benefits News magazine who are managers, directors or vice presidents of benefits. Data was collected online into a secure, password-protected database.

The survey instrument collects data on drug plan design and utilization of prescription drugs dispensed through retail, mail-service and specialty pharmacy distribution channels.

Completed surveys from 417 employers representing 7,041,676 members are included in the analysis. The number of members reported by a respondent is for the benefit plan for which the survey was completed, not necessarily all of the members covered by the respondent for all plans offered. For example, a steel manufacturer might complete the survey for its U.S.-based union employees. This is just one group of the manufacturer’s worldwide employees.

PBMI employed descriptive and inferential statistical analysis to derive the research findings. Trend data are presented throughout the report. Not applicable (NA) is notated in table cells where there are no data to report.

The Executive Summary details our key findings.

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