The association between socioeconomic status and prevalence of diabetes mellitus in rural Japan.

The objective of this study is to investigate the association between socioeconomic status and diabetes prevalence. A population-based cross-sectional survey was conducted in Japan. The association between household income tertile, duration of education (<12, 12, >12 years), or occupation (blue collar, white collar) and diabetes prevalence were assessed in 6,197 participants using multivariable-adjusted logistic regression models.

Quality of care associated with number of cases seen and self-reports of clinical competence for Japanese physicians-in-training in internal medicine.

Background: The extent of clinical exposure needed to ensure quality care has not been well determined during internal medicine training. We aimed to determine the association between clinical exposure (number of cases seen), self- reports of clinical competence, and type of institution (predictor variables) and quality of care (outcome variable) as measured by clinical vignettes.

Methods: Cross-sectional study using univariate and multivariate linear analyses in 11 teaching hospitals in Japan.