Article Figures & Data
Figures
- Figure 1.
Association of sex with stone type.
- Figure 2.
Association of age with stone type.
- Figure 3.
Combined association of age and sex with stone type. (A) Men and (B) women are depicted separately.
- Figure 4.
Association of calendar month with stone numbers submitted. Submissions by month are depicted for four major stone types: (A) calcium oxalate, (B) uric acid, (C) struvite, and (D) apatite. *P<0.001 for evidence of seasonality for a given stone type using a chi-squared test with 11 degrees of freedom.
Tables
Stone Type Number Percent Calcium oxalate 29,319 67.3 Apatite 7000 16.1 Uric acid 3611 8.3 Struvite 1318 3.0 Brushite 374 0.9 Cystine 151 0.35 Ammonium urate 105 0.20 Artifact 1393 3.2 Other 171 0.4 Drug 60 0.1 Sodium/potassium urate 42 0.1 Dihydroxyadenine 1 0.002 Only the first stone submitted per individual was included.
Age (yr) Men Percent Women Percent Ratio of Men to Women Stone Formers 0–9 73 0.3 60 0.3 1.22 (1.05)a 10–19 396 1.6 675 3.7 0.59b (1.04)a 20–29 1588 6.3 2548 13.9 0.62b (1.03)a 30–39 3229 12.8 3331 18.1 0.97 (0.99)a 40–49 4884 19.4 3369 18.4 1.45b (0.97)a 50–59 6160 24.5 3724 20.3 1.65b (0.95)a 60–69 5300 21.0 2765 15.1 1.92b (0.89)a 70–79 2653 10.5 1267 6.9 2.09b (0.78)a 80–89 846 3.4 552 3.0 1.53b (0.63)a 90+ 62 0.2 63 0.3 0.98b (0.63)a Total 25,191 100.0 18,354 100.0 1.37b (0.97)a
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Stone Composition as a Function of Age and Sex
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