title: [Relationship between urinary hydroxyproline creatine ratio and growth rates in boys of age 13 to 16].
abstract: A total number of 241 boys aged 13 to 16 were studied longitudinally for 8 months from April 1986 to December 1986. The linear correlation analysis showed that urinary HP/Cr was highly correlated with height growth rate (r = 0.83) and moderately with weight growth rate (r = 0.63). The multiple correlation coefficients between urinary HP/Cr and height growth rates were much bigger than those between urinary HP/Cr and weight growth rates, only the former were statistically significant. It is suggested that the urinary HP/Cr is mainly correlated with height growth rate. The multiple regression analysis was employed with urinary HP/Cr, age as independent variables and height growth rate as dependent variable. The equation is very significant, 95% confidence limit is y +/- 1.38%. It is suggested that the prediction of height growth rate is rather precise, so urinary HP/Cr is a valuable index in the evaluation of growth of children.
authors.forename: Z P
authors.initials: ZP
authors.lastname: Huang
mesh_terms: D000293:Adolescent; D001827:Body Height; D001835:Body Weight; D003401:Creatine / Q000652:urine; D006128:Growth; D006801:Humans; D006909:Hydroxyproline / Q000652:urine*; D008137:Longitudinal Studies; D008297:Male; D012044:Regression Analysis
chemical_list: D003401:Creatine; D006909:Hydroxyproline