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Table 2 Stone composition and corresponding aetiologies

From: Epidemiology of paediatric renal stone disease: a 22-year single centre experience in the UK

Stone composition (n = 300) Metabolic Infective Idiopathic
Calcium oxalate 44 (14.7%) 8 (2.6%) 50 (16.6%)
Calcium phosphate 42 (14%) 49 (16.3%) 42 (14%)
Triple phosphate 2 (0.7%) 32 (10.7%) 6 (2%)
Cystine 20 (6.7%) 0 0
Uric Acid 0 1 (0.3%) 4 (1.3%)