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Table 6 Distribution of main types of stones according to age groups and gender

From: Morpho-constitutional analysis of urinary stones from patients with urolithiasis in the Democratic Republic of Congo

Sex Types of stones Age (years) Overall
 < 19 20—39 40—59  ≥ 60
Female Oxalate calcium
Whewellite 1(50.0) 7(63.6) 15(75.0) 4(100.0) 27(73.0)
Weddellite 0(0.0) 0(0.0) 2(10.0) 0(0.0) 2(5.4)
Phosphates
Carbapatite 0(0.0) 4(36.4) 2(10.0) 0(0.0) 6(16.2)
Struvite 1(50.0) 0(0.0) 0(0.0) 0(0.0) 1(2.7)
Purines
Anhydrous uric acid 0(0.0) 0(0.0) 1(5.0) 0(0.0) 1(2.7)
All 2(100.0) 11(100.0) 20(100.0) 4(100.0) 37(100.0)
Male Oxalate calcium
Whewellite 3(75.0) 21(77.8) 20(69.0) 20(57.1) 64(67.4)
Weddellite 0(0.0) 2(7.4) 1(3.4) 0(0.0) 3(3.2)
Phosphates      
Carbapatite 0(0.0) 2(7.4) 0(0.0) 3(8.6) 5(5.3)
Struvite 0(0.0) 2(7.4) 2(6.9) 2(5.7) 6(6.3)
Purines
Anhydrous uric acid 1(25.0) 0(0.0) 5(17.2) 7(20.0) 13(13.7)
Urate ammonium 0(0.0) 0(0.0) 0(0.0) 3(8.6) 3(3.2)
Cystine 0(0.0) 0(0.0) 1(3.4) 0(0.0) 1(1.1)
All 4(100.0) 27(100.0) 29(100.0) 35(100.0) 95(100.0)