Document Detail

The relationship of hair zinc concentrations to height, weight, age, and sex in the normal population.
MedLine Citation:
PMID:  7254937     Owner:  NLM     Status:  MEDLINE    
Hair samples from forty-nine normal individuals (both children and adults) were assessed for concentrations of zinc. Pearson correlation coefficients were computed between zinc values and the variables: height, weight, and age (see Table 3). In children (under 240 months), all these relationships were linear, positive, and statistically significant. A linear regression equation using all these variables was found to account for 47.7% of the variance in hair zinc concentrations. In adults (over 240 months), the correlation coefficients between hair zinc and height, weight, and age were not found to be significant, with the exception of the negative correlation between hair zinc and weight (r = -0.464; P less than 0.047). Nevertheless, a multivariate linear regression equation accounted for about 24.6% of the variability of hair zinc values. In both children and adults, tests for sex differences in means and standard deviations using both raw score and residual values failed to reveal any significant differences. Similarly, no significant sex differences were observed between corresponding correlation coefficients. Results indicate that future studies utilizing hair must systematically or mathematically control for individual variation in zinc concentrations due to differences in age, weight, and height.
P S Gentile; M J Trentalange; M Coleman
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Pediatric research     Volume:  15     ISSN:  0031-3998     ISO Abbreviation:  Pediatr. Res.     Publication Date:  1981 Feb 
Date Detail:
Created Date:  1981-09-25     Completed Date:  1981-09-25     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0100714     Medline TA:  Pediatr Res     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  123-7     Citation Subset:  IM    
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MeSH Terms
Age Factors
Body Height
Body Weight
Child, Preschool
Hair / analysis*
Middle Aged
Regression Analysis
Sex Factors
Zinc / analysis*
Reg. No./Substance:

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