At some types of health plans, per-member administrative cost trends increased to 11.5% in 2008, from 4.9% in 2007.
Sherlock Company, Gwynedd, Pa., came up with those figures when it looked at "independent/provider-sponsored plans."
That definition includes regional plans that are not Blue Cross and Blue Shield plans and, in most cases, are or were partly or entirely owned by health care providers.
The 16 plans included in that group provide health coverage for 5.7 million people.