Description: This study was sponsored by the Society of Actuaries Health Section. This paper explores the relative significance of aging as a determinant of financial cost of health care beyond age 50, with particular attention to the effect for ages 65 and older. The paper presents concepts of aging factors and aging curves, which define relative values between ages for utilization or cost of health care services. General conclusions are drawn from Medicare data that utilization and cost differ by age, but that aging factors vary across services and may be less significant at very old ages. The author then turns to the question of measuring the significance of an aging curve assumption and what accuracy is lost in the simpler alternative of a single value across an age range.

Description: In the course of consulting engagements, actuaries almost always find they need one or more of the following resources: -Healthcare data, which may be at the individual patient level or on a particular population. -Health services research studies which describe, summarize, try to alter, or predict patients’ use of health resources. -Health policy information, which describe public or private actions which affect the access, cost and quality of medical care. This document describes the ever-changing resources and specifies where they may be obtained.