Fig. 2. The relationship between fecal and urinary potassium excretion of 10 subjects on a fixed potassium intake of 61.2 ± 4.70 mmol/day (Phase 1). The main figure depicts mean values, presented with weighted linear regression line, weighted correlation coefficient and p value. Horizontal lines within the main figure are standard error bars for fecal potassium excretion and vertical lines are standard error bars for urinary potassium excretion. The inset presents all observations. Each of the 10 subjects in the inset was assigned a different symbol that is identical to the symbol used for the subject in the main figure. The linear regression line based on multiple observations per individual and r (Pearson correlation coefficient) and p value of the linear regression are noted.