Figure 2
From: Infants and elderlies are susceptible to zinc deficiency
Histogram of log zinc concentration in Japanese subjects (N = 28,424).
Hair zinc concentrations for 28,424 subjects are shown in the log plot. The numbers on the abscissa indicate the log of hair zinc concentrations (ng/g hair: ppb). The height of each rectangle represents the frequency in the respective class interval of the log of hair zinc concentration. The dotted vertical line represents the −2 S.D. (standard deviation) level of the control reference range for hair zinc concentrations.
