Fig. 1.

Association between estimated daily salt intake and SBP (in the model adjusted for age, BMI, GGT, drinking status, smoking status, estimated 24-h potassium excretion, physical activity, education status, damage to the home during the GEJE, and residential area). p for difference was derived from Dunnett’s test using estimated daily salt intake <6.0 g/day as the reference. Bars represent 95% confidence intervals. p for difference is shown as follows: *p < 0.05, **p < 0.01, and ***p < 0.001. p for trend was calculated by scoring the estimated daily salt intake categories and entering the number as a continuous term in the regression model. BMI body mass index, GGT gamma-glutamyl transferase, GEJE Great East Japan Earthquake, SBP systolic blood pressure