BP distributions in the MinaCare, MHLW-SH, and MHLW-H&N data. A: Proportions of subjects with SBP ≥140 mmHg. B: Proportions of subjects with DBP ≥90 mmHg. 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 results for subjects aged ≥75 years requires care due to the small sample size (11 males and 6 females) in the MinaCare data.