Table 2.
Mean plasma tocopherol (total and subtype) by age group (μg/ml).
| Age | 20s | 30s | 70s | 80s | 100s | |
|---|---|---|---|---|---|---|
| α Toc | Male (n) |
11.81 ± 3.03 (4)** | 12.35 ± 3.60 (8)** | 13.15 ± 7.82 (17)* | 9.44 ± 1.07 (5)* | 7.79 ± 2.10 (19) |
| Female (n) | 9.58 ± 2.62 (4) | 11.07 ± 3.91 (8) | 16.31 ± 11.64 (30)** | 13.58 ± 3.63 (3) | 9.82 ± 3.35 (72) | |
| Total (n) |
10.69 ± 2.88 (8)** | 11.71 ± 3.69 (16)** | 15.14 ± 11.41 (47)*** | 11.28 ± 3.20 (8)* | 9.37 ± 3.32 (91) | |
|
| ||||||
| β Toc | Male (n) |
0.25 ± 0.04 (4) | 0.22 ± 0.05 (8) | 0.23 ± 0.08 (17)* | 0.20 ± 0.05 (5) | 0.18 ± 0.07 (18) |
| Female (n) | 0.22 ± 0.04 (4) | 0.21 ± 0.04 (8) | 0.31 ± 0.18 (30)** | 0.28 ± 0.13 (3) | 0.20 ± 0.21 (69) | |
| Total (n) |
0.23 ± 0.04 (8) | 0.21 ± 0.04 (16) | 0.28 ± 0.16 (47)** | 0.23 ± 0.09 (8) | 0.20 ± 0.19 (87) | |
|
| ||||||
| γ Toc | Male (n) |
1.37 ± 0.58 (4) | 1.17 ± 0.40 (8) | 1.00 ± 0.51 (17) | 1.18 ± 0.33 (5) | 0.93 ± 0.42 (18) |
| Female (n) | 0.98 ± 0.22 (4) | 1.04 ± 0.50 (8) | 1.62 ± 1.76 (30)* | 1.16 ± 0.17 (3) | 1.03 ± 0.59 (72) | |
| Total (n) |
1.17 ± 0.46 (8) | 1.11 ± 0.44 (16) | 1.39 ± 1.45 (47)* | 1.17 ± 0.49 (8) | 1.01 ± 0.52 (90) | |
|
| ||||||
| Total Toc | Male (n) |
13.42 ± 3.60 (4)** | 13.74 ± 3.70 (8)*** | 14.38 ± 8.28 (17)* | 10.82 ± 1.37 (5)* | 8.89 ± 2.31 (19) |
| Female (n) | 10.78 ± 2.80 (4)*** | 12.33 ± 3.87 (8) | 18.24 ± 12.69 (30)*** | 15.01 ± 3.62 (3)*** | 11.05 ± 3.41 (91) | |
| Total (n) |
12.10 ± 3.31 (8)*** | 13.03 ± 3.73 (16)*** | 16.81 ± 11.32 (47)*** | 12.68 ± 3.27 (8)*** | 10.58 ± 3.32 (110) | |
Toc: Tocopherol.
Significant difference between centenarians and particular age group: *P < .05; **P < 0.01; ***P < .001.
Significant difference between male and female centenarians: P < .01 in α Toc; P < .05 in total Toc.