Member health index

Health insurance plan’s complex formula that measures and tracks the insured’s overall health levels such as how often they are in emergency departments, how often they receive preventive care, and whether they take needed medications.

Member months

Total managed care plan membership each month for a given time period (e.g., 200 members serviced each month for 6 months equals 1200 member months). Operating figures for managed care companies may be expressed in terms of member months (e.g., per member per month [PMPM] or per member per year [PMPY]).

Member trustees/member-nominated trustees

Trustees appointed specifically in their capacity as scheme members whose appointments have been influenced by other members. This includes selection by a trade union. Not all member trustees are member-nominated trustees within the meaning of PA 1995. Under PA 1995 occupational scheme members have the right to select at least one-third of the trustees, unless the members have approved an alternative proposal by the employer. Previously the employer alone could appoint or remove trustees.