NORC I 2016 VSP Summary Data Report for the vision& Eye Health Surveillance System Dataset Description VSP Global is the nations largest vision insurance provider, operating as a nonprofit corporation for 60 years. Vision insurance is a specialized supplemental insurance provided through employers, commercial health plans, Medicare/Medicaid supplement plans, the federal employees health benefits program (FEHB), tribes, or purchased individually to provide routine vision care coverage. Generally, VSP data includes optometric exams and procedures, diagnoses(refractive errors, eye disease, systemic disease, acute issues), vision correction utilization, prescriptions and materials dispensed, costs, provider information, and patient demographics VSP does not report their patient volume but report that more than one in four Americans have VSP coverage. VSP processes claims in every state, but market penetration varies by state. VSP's national network contains about 33,000 eye care professionals. Approximately 85% are OD,'s(optometrist), and 15% are MD's(ophthalmologist) vSP claims contain the age of patients, but do not include race/ethnicity. Medical diagnosis coverage in VSP claims are Vision insurance claims typically include diagnosis codes for refractive error, but medical diagnoses are generally not required for payment of routine vision services thus their inclusion in claims by the billing practice is optional. This is especially true for non-refraction related codes. Diagnosis information in VSP claims cannot be considered as disease prevalence estimates but could be considered an indicator of vision care services Analysis Overview For the vess project, VSP analyzed their 2016 claims databases to estimate the annual prevalence rate of treated diagnoses and the rate of clinical procedures. VSP analyzed the claims data and provided NORC with de-identified summary reports of frequencies and rates, summarized by state and by age group, race/ethnicity, and sex NORC further analyzed the summary data files, mapping outcomes to VEHSS-defined categories calculating confidence intervals, cleaning data. Results were further suppressed if the numerator was <3 and the denominator was less than 30. or the numerator was >3 and the denominator was <30 NORC found that about 8%of VSP patients who had no claims filed during the year did not have a state of residence identified. State of residence for these patients was imputed based on the state-distribution of beneficiaries with a state location on file. VSP stated that they did not believe that there were any systematic reasons why the inclusion of beneficiary's address information would vary by state, and thusNORC | 2016 VSP Summary Data Report for the Vision & Eye Health Surveillance System 5 Dataset Description VSP Global is the nation’s largest vision insurance provider, operating as a nonprofit corporation for 60 years. Vision insurance is a specialized supplemental insurance provided through employers, commercial health plans, Medicare/Medicaid supplement plans, the federal employees health benefits program (FEHB), tribes, or purchased individually to provide routine vision care coverage. Generally, VSP data includes optometric exams and procedures, diagnoses (refractive errors, eye disease, systemic disease, acute issues), vision correction utilization, prescriptions and materials dispensed, costs, provider information, and patient demographics. VSP does not report their patient volume, but report that more than one in four Americans have VSP coverage. VSP processes claims in every state, but market penetration varies by state. VSP’s national network contains about 33,000 eye care professionals. Approximately 85% are OD’s (optometrist), and 15% are MD’s (ophthalmologist). VSP claims contain the age and sex of patients, but do not include race/ethnicity. Medical diagnosis coverage in VSP claims are limited. Vision insurance claims typically include diagnosis codes for refractive error, but medical diagnoses are generally not required for payment of routine vision services, thus their inclusion in claims by the billing practice is optional. This is especially true for non-refraction related codes. Diagnosis information in VSP claims cannot be considered as disease prevalence estimates, but could be considered an indicator of vision care services. Analysis Overview For the VEHSS project, VSP analyzed their 2016 claims databases to estimate the annual prevalence rate of treated diagnoses and the rate of clinical procedures. VSP analyzed the claims data and provided NORC with de-identified summary reports of frequencies and rates, summarized by state and by age group, race/ethnicity, and sex. NORC further analyzed the summary data files, mapping outcomes to VEHSS-defined categories, calculating confidence intervals, cleaning data. Results were further suppressed if the numerator was <3 and the denominator was less than 30, or the numerator was ≥3 and the denominator was ≤30. NORC found that about 8% of VSP patients who had no claims filed during the year did not have a state of residence identified. State of residence for these patients was imputed based on the state-distribution of beneficiaries with a state location on file. VSP stated that they did not believe that there were any systematic reasons why the inclusion of beneficiary’s address information would vary by state, and thus