Distributions of subjects with HbA1c ≥6.1% in the MinaCare, MHLW-SH, and MHLW-H&N data. Squares represent males and circles represent females. Black, grey, and open symbols represent the MinaCare, MHLW-SH, and MHLW-H&N data, respectively. Interpretation of the result for subjects aged ≥75 years requires care due to the small sample size (11 males and 6 females) in the MinaCare data. * The proportion for females of ≥75 years in the MinaCare data is off-scale.