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Table 2 Stone composition by gender

From: Changes in urinary risk profile after short-term low sodium and low calcium diet in recurrent Swiss kidney stone formers

Stone type

Male (n = 154)

Female (n = 61)

Total (n = 215)

Calciumoxalate n (%)

71 (46)

19 (31)

90 (42)

Apatite n (%)

3 (2)

5 (8)

8 (4)

Uric acid n (%)

6 (4)

1 (2)

7 (3)

Mixed n (%)

57 (37)

25 (41)

82 (38)

Others n (%)

3 (2)

2 (4)

5 (2)

Unknown n (%)

14 (9)

9 (14)

23 (11)

  1. “Mixed” stones include Calciumoxalate with Apatite, Uric acid, Struvite, Brushite, or Whitlockite