Table 4. Pearson correlations of lean mass, fat mass, BF%, and BMI by age group.

Age group	n	Lean mass and BMI	Fat mass and BMI	BF% and BMI
20–39 y	297	0.589* a	0.696* a	0.844* b
40–59 y	88	0.721* a	0.783* a	0.907* b
≥ 60 y	71	0.573* a	0.707* a	0.868* b
Total	456	0.589* a	0.723* b	0.874* c

*Significantly correlated, P < 0.0001. Pearson correlation coefficients within each age group not sharing similar superscripts are significantly different, P < 0.05.