Figure 4.

Dotplot showing the aldosterone frequency distribution, etc. (a) Aldosterone frequency distribution, unadjusted, in 93 subjects with untreated hypertension and plasma renin concentration ≤5 mU/L. Dip test for unimodality, P = 0.11. (b) Aldosterone frequency distribution, adjusted for age, sex, and urine sodium/creatinine ratio, in the 81 of the 93 subjects with hypertension and plasma renin concentration ≤5 mU/L, for whom the urine sodium/creatinine ratio was available. Dip test for unimodality, P = 0.008.