Table 1.

The FFA levels between sexes

Sex	Age (y)
	n	20 ~ 50	n	50 ~ 60	n	60~
Male	145	2.60 ± 0.16	56	2.65 ± 0.18	75	2.72 ± 0.18
Female	153	2.61 ± 0.16	55	2.65 ± 0.19	56	2.73 ± 0.17

Independent-Samples T Test.