In a groundbreaking arrangement, a consortium of large employers-the X
erox, GTE, and Digital Equipment Corporations-launched the Employee He
alth Care Value Survey during fall 1993. Completed by 24,306 employees
, this survey was used to develop comparable methods for assessing cor
porate health care benefit strategies. It also enabled fair comparison
s of thirty-two health plans across the country on more than sixty cri
teria. Variation in performance among plans was substantial, with mana
ged care plans-particularly prepaid group practices and individual pra
ctice associations (IPAs)-recording the most favorable rankings on dis
enrollment, overall satisfaction, and other measures of ''bottom-line
performance.'' Variation in enrollees' health among plans was more mod
est, with indemnity enrollees posing a somewhat greater illness burden
to their plans than enrollees of other plan types. The employers and
evaluated health plans are now using the results for multiple purposes
, including quality improvement initiatives, employee-based plan perfo
rmance reports, employee contribution strategies, and health promotion
programs.