Research Article
Concentration of Zinc, Copper, Selenium, Manganese, and Cu/Zn Ratio in Hair of Children and Adolescents with Myopia
Table 4
Hair trace elements concentration and Cu/Zn ratio in HM and MM groups.
| | HM group (), min; med; max | MM group (), min; med; max | | Significant differences |
| Zn (µg/g) | 99.6; 258; 1240 | 149; 322; 754 | <0.001 | C vs HM, C vs MM | Cu (µg/g) | 0.89; 10.9; 98.1 | 2.34; 11.5; 158 | 0.04 | — | Se (ng/g) | 22.6; 323; 4670 | 44.6; 280; 5060 | 0.42 | — | Mn (ng/g) | 107; 451; 5610 | 160; 464; 1880 | 0.037 | — | Cu/Zn ratio | 0.002; 0.045; 0.41 | 0.01; 0.045; 0.817 | 0.017 | — |
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aP value for Kruskal–Wallis test. Statistically significant differences at 0.01 significance level. |