Table 1.
Baseline characteristics of participants in this validation cohort versus the original validation study.6
| Characteristics | This Validation Cohort (n=845), Frequency (%) | Original Validation Study* (n=491), Frequency (%) |
|---|---|---|
| Age (SD), y | 40 (13) | 46 (15) |
| Male sex | 413 (49) | 273 (56) |
| Race | ||
| White | 359 (43) | 411 (84) |
| Black | 169 (20) | 57 (12) |
| Hispanic | 235 (28) | † |
| Asian | 45 (5) | † |
| Mixed | 27 (3) | All other |
| Native American Indian | 8 (1) | 23 (5) |
| Pacific Islander | 2 (0.2) | † |
| Radiology findings | ||
| Ureteral stone | 331 (39.2) | 274 (56) |
| Alternative diagnosis | 45 (5.3) | 18 (3.7) |
| Disposition | ||
| Admission to hospital | 95 (11) | 52 (11) |
*
Data from the original study describe the internal validation cohort.6
†
Data from the initial study are not available.