Table 6 Sex-dependence of zinc concentration in human hair (μg/g hair)
From: Age- and sex-dependence of five major elements in the development of human scalp hair
Age (years) | Female | Male | F/M ratio | p value | ||||
|---|---|---|---|---|---|---|---|---|
Number | Average | S.D. | Number | Average | S.D. | |||
0– | 3 | 126.0 | 53.0 | 5 | 110.0 | 40.0 | 1.15 | 0.6418 |
5– | 14 | 116.0 | 38.0 | 22 | 128.0 | 32.0 | 0.91 | 0.3150 |
10– | 15 | 153.0 | 12.0 | 17 | 143.0 | 19.0 | 1.07 | 0.0901 |
15– | 7 | 160.0 | 16.0 | 9 | 143.0 | 20.0 | 1.12 | 0.0880 |
20– | 19 | 151.0 | 15.1 | 7 | 149.0 | 7.6 | 1.01 | 0.9973 |
30– | 23 | 153.6 | 18.9 | 10 | 155.2 | 17.5 | 0.99 | 0.5361 |
40– | 36 | 156.7 | 14.5 | 16 | 150.5 | 11.9 | 1.04 | 0.1533 |
50– | 17 | 153.9 | 9.0 | 10 | 157.4 | 16.0 | 0.98 | 0.5112 |
60– | 10 | 151.4 | 21.5 | 7 | 158.0 | 11.0 | 0.96 | 0.4523 |
70– | 10 | 142.0 | 24.6 | 16 | 146.8 | 16.2 | 0.97 | 0.5381 |
80– | 15 | 139.3 | 30.0 | 8 | 152.8 | 22.1 | 0.91 | 0.2595 |