; (ii) insurance premiums; (iii) enrollment in high deductible health plans; (iv) utilization of primary care visits, telehealth visits, emergency department visits, and hospital admissions; and (v) the rate of employer implementation of flexibilities in changes to benefit design; and (B) comparisons of patient engagement with services for those whose employer incorporated flexibilities into their benefit design and those who did not do so. (2) Final report Not later than 365 days after the interim report under paragraph (1) is issued, the Comptroller General of the United States shall provide a final report to Congress containing a comprehensive analysis of the results of the study under subsection (a). Such report shall include updated findings, analyses, and comparisons described in paragraph (1).