Table 2.
Demographic characteristics of patients and outcomes.
| Patient Characteristic | n = 835* | |
|---|---|---|
| Age, median, IQR | 46 | 35–56 |
| Female sex | 423 | 50.7 |
| Race | ||
| Asian | 20 | 2.4 |
| Black | 117 | 14.0 |
| White | 682 | 81.7 |
| Other | 16 | 1.9 |
| Hispanic ethnicity | 173 | 20.7 |
| History of kidney stone | 321 | 38.4 |
| History of urologic procedure | 144 | 17.2 |
| Nausea/vomiting | ||
| Nausea alone | 276 | 33.1 |
| Nausea and vomiting | 334 | 40.0 |
| None | 225 | 26.9 |
| Duration of pain at presentation | ||
| <6 h | 233 | 27.9 |
| 6 h to 1 day | 279 | 33.4 |
| >1 day to 1 wk | 234 | 28.0 |
| >1 wk | 86 | 10.3 |
| Hematuria on UA | 641 | 76.8 |
| STONE score (%) | ||
| Low (<20) | 144 | 17.2 |
| Moderate (20–80) | 411 | 49.2 |
| High (>80) | 280 | 33.5 |
| Hydronephrosis on renal PLUS | ||
| None | 449 | 53.8 |
| Any | 386 | 46.2 |
| Moderate or greater | 146 | 17.5 |
| Outcomes | ||
| Acutely important alternate finding | 54 | 6.5 |
| Symptomatic kidney stone on CT | 442 | 52.9 |
| Large (>5 mm) stone† | 90 | 20.4 |
| Urologic intervention† | 133 | 30.1 |
| Lithotripsy† | 71 | 16 .1 |
| Ureteral stent† | 98 | 22.2 |
| Surgical stone removal† | 48 | 10.9 |
| Disposition | ||
| Discharge | 665 | 79.6 |
| Admit or observation | 162 | 19.4 |
| ICU | 7 | 0.8 |
| Directly to operating room | 5 | 0.6 |
| Eloped | 2 | 0.2 |
IQR, Interquartile range; UA, urinalysis; CT, computed tomography; ICU, intensive care unit.
*
Data are presented as No. (%) unless otherwise indicated.
†
Percentage of patients among those with stone identified on CT.