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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)FemaleMaleF/M ratiop value
NumberAverageS.D.NumberAverageS.D.
0–3126.053.05110.040.01.150.6418
5–14116.038.022128.032.00.910.3150
10–15153.012.017143.019.01.070.0901
15–7160.016.09143.020.01.120.0880
20–19151.015.17149.07.61.010.9973
30–23153.618.910155.217.50.990.5361
40–36156.714.516150.511.91.040.1533
50–17153.99.010157.416.00.980.5112
60–10151.421.57158.011.00.960.4523
70–10142.024.616146.816.20.970.5381
80–15139.330.08152.822.10.910.2595
  1. S.D. indicates standard deviation
  2. F/M ratio is the ratio of the female average calcium concentration to the male average calcium concentration