Fig. 3

Time course of renal phosphorus metabolic indices. Open circle: Early-D; closed square: Late-D. (a) filtered phosphorus load (F-Pi), (b) tubular threshold for phosphorus (Tp/CCr), (c) urinary phosphorus excretion per hour (U-Pi/h), (d) renal fractional phosphorus excretion (FE-Pi). Differences between Early-D and Late-D were calculated using the Student’s t-test for paired comparisons or Wilcoxon signed-rank test. Differences from baseline were calculated using a repeated measure ANOVA or Friedman's Test with Bonferroni post hoc test. Early-D: early dinner; Late-D: late dinner. *P < 0.001, **P < 0.01, ***P < 0.05 Early-D versus Late-D. §P < 0.001, §§§P < 0.05 versus baseline for Early-D. †P < 0.001, ††P < 0.01, †††P < 0.05 versus baseline for Late-D