Table 3.

Mean intracellular (red blood cell) tocopherol levels by age strata (total and subtype) (μg/ml).

		20s	30s	70s	80s	100s
α Toc	Male (n)	2.47 ± 0.49 (4)**	2.43 ± 0.35 (8)**	2.48 ± 0.25 (17)***	2.46 ± 0.28 (5)*	1.51 ± 0.84 (19)
	Female (n)	2.53 ± 0.35 (4)	2.79 ± 0.82 (8)	2.61 ± 0.76 (30)***	2.91 ± 0.87 (3)	2.00 ± 1.13 (77)
	Total (n)	2.50 ± 0.40 (8)**	2.61 ± 0.64 (16)**	2.56 ± 0.62 (47)***	2.66 ± 0.61 (8)*	1.89 ± 1.09 (96)
β Toc	Male (n)	0.05 ± 0.00 (4)	0.05 ± 0.01 (8)	0.04 ± 0.01 (17)*	0.05 ± 0.01 (5)	0.08 ± 0.04 (10)
	Female (n)	0.04 ± 0.00 (4)	0.04 ± 0.01 (8)	0.05 ± 0.02 (30)**	0.06 ± 0.02 (3)	0.10 ± 0.08 (37)
	Total (n)	0.05 ± 0.01 (8)	0.04 ± 0.01 (16)	0.05 ± 0.02 (47)**	0.05 ± 0.01 (8)	0.09 ± 0.07 (47)
γ Toc	Male (n)	0.35 ± 0.06 (4)	0.31 ± 0.12 (8)	0.27 ± 0.09 (17)	0.39 ± 0.10 (5)	0.25 ± 0.16 (18)
	Female (n)	0.35 ± 0.08 (4)	0.32 ± 0.11 (8)	0.33 ± 0.17 (30)*	0.31 ± 0.16 (3)	0.23 ± 0.19 (74)
	Total (n)	0.35 ± 0.07 (8)	0.32 ± 0.11 (16)	0.31 ± 0.15 (47)*	0.35 ± 0.13 (8)	0.24 ± 0.18 (92)
Total Toc	Male (n)	2.87 ± 0.50 (4)***	2.76 ± 0.41 (8)***	2.79 ± 0.30 (17)***	2.89 ± 0.37 (5)*	1.80 ± 1.00 (19)
	Female (n)	2.92 ± 0.39 (4)***	3.15 ± 0.75 (8)	2.98 ± 0.82 (30)***	3.24 ± 0.76 (3)***	2.30 ± 1.22 (77)
	Total (n)	2.90 ± 0.42 (8)***	2.95 ± 0.62 (16)***	2.91 ± 0.67 (47)***	3.05 ± 0.57 (8)***	2.19 ± 1.19 (96)

Toc: Tocopherol.

Significant difference centenarians and individual age groups: *P < .05; **P < 0.01; ***P < .001.