title: Urinary calcium excretion in schoolboys. Ethnic group differences.
abstract: The urinary calcium/creatinine ratio was estimated in two groups of schoolboys--village Arabs and urban Jewish (Ashkenazic) schoolboys, aged 10 to 11 years. Both the mean calcium/creatinine ratio and the frequency of hypercalciuria were higher among the Arab boys, and may be related to the higher incidence of chilidhood urolithiasis in Arab children in Israel.
mesh_terms: D002118:Calcium / Q000652:urine*; D002648:Child; D003404:Creatinine / Q000652:urine; D005006:Ethnicity; D006801:Humans; D007557:Israel; D008297:Male; D014545:Urinary Calculi / Q000453:epidemiology
chemical_list: D003404:Creatinine; D002118:Calcium