Demographic and rural-urban variations in dental service utilization in Taiwan

This study assesses whether demographic and rural-urban variations in dental care service utilization still exist in Taiwan after 15 years of the implementation of universal health insurance coverage, which largely reduces financial barriers to dental care. The data analysed in this cohort study were based on a random sample of one million beneficiaries retrieved from Taiwan's National Health Insurance Research Database (NHIRD) in 2005. The follow-up was made between 2005 and 2010. Poisson regression models were used to explore the associations of dental service utilization rates with urbanization and demographic characteristics. The highest and lowest rates of preventive dental care were obtained in people aged 55-64 years (579.2/1000 person-years) and