PT - JOURNAL ARTICLE AU - Thalassinos, N. C. AU - Leese, Brenda AU - Latham, S. C. AU - Joplin, G. F. TI - Urinary Excretion of Phosphate in Normal Children AID - 10.1136/adc.45.240.269 DP - 1970 Apr 01 TA - Archives of Disease in Childhood PG - 269--272 VI - 45 IP - 240 4099 - http://adc.bmj.com/content/45/240/269.short 4100 - http://adc.bmj.com/content/45/240/269.full SO - Arch Dis Child1970 Apr 01; 45 AB - In 55 normal children on a normal diet, the phosphate and creatinine were estimated in a fasting 2-hour urine collection and in a simultaneous blood sample. In comparison with adults, a high serum phosphate and relatively decreased phosphaturia were found, both of which tended to adult values with the advent of puberty. A correlation between the serum phosphate and the urine phosphate/creatinine ratio (r = + 0·42, p <0·002) was found. The phosphate excretion index was lower in mid-childhood than in adulthood. The interpretation of any expression of phosphaturia in childhood requires its own age-specific normal range.