Table 1.

Characteristics of patients with kidney stones and the population of South Carolina

CharacteristicsPatients with Kidney Stone (n=152,925)Census 2000 (n=4,012,012)Census 2010 (n= 4,625,364)
Male, n (%)93,887(61.4)1,948,929 (48.6)2,250,101 (48.6)
Urban, n (%)116,411 (76.1)2,427,124 (60.5)3,067,809 (66.3)
Race, n (%)
 White129,989 (85.0)2,695,560 (67.2)3,060,000 (64.1)
 Black18,464 (12.1)1,185,216 (29.5)1,279,998 (27.7)
 Asian530 (0.3)36,014 (0.9)58,307 (1.3)
 American Indian216 (0.1)13,718 (0.3)18,727 (0.4)
 Other3726 (2.4)81,504 (2.0)196,105 (4.2)
Age group, yr, n (%)
 <10396 (0.3)549,922 (13.7)598,150 (12.9)
 10–141012 (0.7)290,479 (7.2)297,286 (6.4)
 15–195015 (3.3)295,377 (7.4)328,989 (7.1)
 20–249631 (6.3)281,714 (7.0)332,494 (7.2)
 25–3427,580 (18.0)560,831 (14.0)592,056 (12.8)
 35–4432,547 (21.3)625,124 (15.6)601,292 (13.0)
 45–6455,638 (36.4)923,232 (23.0)1,243,223 (27.0)
  ≥6521,106 (13.8)485,333 (12.1)631,874 (13.6)
Insurance, n (%)
 Public38,130 (24.9)
 Private89,777 (58.7)
 Self-pay24,073 (15.7)
 No insurance945 (0.6)