Age and sex distribution in chronic renal failure patients at dialysis induction

Age distribution at dialysis induction among patients with chronic renal failure was studied in 579 cases. Age distribution differed depending on the primary renal diseases and sex. In chronic glomerulonephritis, males were most numerous in the 30-39 year-old group, followed by the 40-49 and 20-29 year-old groups. They decreased with age. Females showed the same frequencies among the 20-29, 30-39, 40-49, 50-59, 60-69 and 70-79 year-old groups. However, the 50-59 year-old group had the most cases. Among cases of diabetic nephropathy, males were most numerous in the 50-59 year-old group and females in the 60-69 year-old group. Progression of the disease to renal failure seemed to be more rapid in males than in females. Natural history and possible risk factors in patients with chronic renal failure maintained on hemodialysis were discussed.