Identifying children with chronic conditions for influenza vaccination using a statewide immunization registry: initial experiences of primary care providers.

CONTEXT: Children with chronic medical conditions are at increased risk of complications from influenza- yet their vaccination rates are low. The Michigan Care Improvement Registry (MCIR)- a statewide immunization registry- was expanded in 2006 to include an indicator- based on Medicaid administrative claims- that prompts providers to offer influenza vaccine to high-risk children (ie- those with chronic conditions). OBJECTIVE: To assess primary care providers' experiences with the MCIR high-risk indicator. DESIGN: A cross-sectional- self-administered survey mailed in July 2009. SETTING: State of Michigan. PARTICIPANTS: A total of 300 family physicians and 300 pediatricians who served as primary care providers for children in Michigan's Medicaid program. MAIN OUTCOME MEASURES: Provider experiences with the high-risk indicator/ suggestions for improvement. RESULTS: Response rate was 79%. Only 32% of pediatricians and 17% of family physicians recalled seeing the high-risk indicator during the 2008-2009 influenza