Synergy between the pay-for-performance scheme and better physician-patient relationship might reduce the risk of retinopathy in patients with type 2 diabetes.

AIMS/INTRODUCTION: This study investigated whether participation by patients with type 2 diabetes in Taiwan's pay-for-performance (P4P) program and maintaining good continuity of care (COC) with their healthcare provider reduced the likelihood of future complications, such as retinopathy. MATERIALS AND METHODS: The analysis used longitudinal panel data for newly diagnosed type 2 diabetes from the National Health Insurance claims database in Taiwan. COC was measured annually from 2003 to 2013, and was used to allocate the patients to low, medium and high groups. Cox regression analysis was used with time-dependent (time-varying) covariates in a reduced model (with only P4P or COC), and the full model was adjusted with other covariates. RESULTS: Despite the same significant effects of treatment at primary care, the Diabetes Complications Severity Index scores were significantly associated with the development of retinopathy. After adjusting for these, the hazard ratios for developing retinopathy among P4P participants in the low, medium and high COC groups were 0.594 (95% confidence interval [CI] 0.398-0.898, P = 0.012), 0.676 (95% CI 0.520-0.867, P = 0.0026) and 0.802 (95% CI 0.603-1.030, P = 0.1062), respectively. Thus, patients with low or median COC who participated in the P4P program had a significantly lower risk of retinopathy than those who did not. CONCLUSIONS: Diabetes care requires a long-term relationship between patients and their care providers. Besides encouraging patients to participate in P4P programs, health authorities should provide more incentives for providers or patients to regularly survey patients' lipid profiles and glucose levels, and reward the better interpersonal relationship to prevent retinopathy.

Evaluation of the National Notifiable Disease Surveillance System in Taiwan: an example of varicella reporting.

Despite the mandatory reporting by laws, the incompleteness of notifiable infectious disease reporting is well-documented in many countries for various diseases. The purpose of this study is to investigate the completeness of varicella reporting in Taiwan. Annual reports of National Notifiable Disease Surveillance System in Taiwan were compared to the annual outpatient claims of National Health Insurance (NHI) in the years of 2000, 2001, and 2002. Age and area-specific reporting rates of varicella were calculated by dividing the respective reported cases by the number of incidence cases. The reporting rate was the highest in aged 0 year in all years, followed by the 20-29- and 30-39-year groups. The reporting rate in each age group increased gradually during the study period. Other than Taipei City, the reporting rates in all regions were below 9% during this period. This study suggested that varicella reporting rate is very low in Taiwan. In addition, the reporting rates were inconsistent in 2000-2002, making the estimation of prevalence and vaccine efficacy using data from the National Notifiable Disease Surveillance System almost impossible. This study indicated that the physicians in Taiwan should improve their knowledge and attitude toward notifiable infectious diseases.