The audit found that many features of the present system weaken citizens' equal possibilities to use health insurance to supplement public health care services. The audit sought to determine whether health insurance compensation for private medical and dental care promotes citizens' equal opportunities to supplement public health care services at reasonable cost. The audit also examined how compensation is spread among different parts of the population and what effects increases in compensation have had. This document contains a summary of the main results of the audit. The entire audit report is available only in Finnish.