TABLE 1.
Characteristics of Children With Nephrolithiasis Who Underwent Diagnostic Imaging in the United States from 2003 to 2011
| Total Pediatric Population in MarketScan (N = 17 827 229) | Children With Nephrolithiasis Who Underwent Imaging (N = 9228) | |
|---|---|---|
| Median age, y (IQR) | 10 (6–14) | 15 (12–17) |
| Gender, n (%) | ||
| Male | 9 111 328 (51.1) | 3834 (41.5) |
| Female | 8 715 901 (48.9) | 5394 (58.5) |
| Plan type, n (%) | ||
| POS | 1 578 897 (8.9) | 976 (10.6) |
| CDHP/HDHP | 863 370 (4.8) | 418 (4.5) |
| PPO | 11 749 236 (65.9) | 6302 (68.3) |
| EPO | 217 788 (1.2) | 118 (1.3) |
| HMO | 3 417 938 (19.2) | 1414 (15.3) |
CDHP, consumer-driven health plan; EPO, exclusive provider organization; HDHP, high-deductible health plan; HMO, health maintenance organization; IQR, interquartile range; POS, point of service; PPO, preferred provider organization.