Table 1.
Characteristics of patients who presented with kidney stones and the population of South Carolina.
| Characteristics | Cohort (n=188,531) | Census 2010 (n=4,625,364) | |
|---|---|---|---|
| Male (%) | 114,100 (60.5) | 2,250,101 (48.6) | |
| Urban (%) | 143,201(76.0) | 3,067,809 (66.3) | |
| Race/Ethnicity (%) | White | 159,468(84.6) | 2,962,740 (64.1) |
| African-American | 23,391(12.4) | 1,279,998 (27.7) | |
| Asian | 673 (0.4) | 58,307 (1.3) | |
| Native American | 265 (0.1) | 18,727 (0.4) | |
| Other | 4,734 (2.5) | 69,910 (1.5) | |
| Age group (%) | <10 y/o | n/a | 598,150 (12.9) |
| 10–14 y/o | n/a | 297,286 (6.4) | |
| 15–19 y/o | n/a | 328,989 (7.1) | |
| 20–24 y/o | 12,089 (6.4) | 332,494 (7.2) | |
| 25–34 y/o | 33,486 (17.8) | 592,056 (12.8) | |
| 35–44 y/o | 39,181 (20.8) | 601,292 (13.0) | |
| 45–64 y/o | 68,354 (36.3) | 1,243,223 (27.0) | |
| >=65 y/o | 27,414 (14.5) | 631,874 (13.6) | |
| Insurance (%) | Public | 49,852 (26.4) | |
| Private | 107,231(56.9) | ||
| Self-pay | 30,470 (16.2) | ||
| No insurance | 978 ( 0.5) |