Table 1.
Urinary eosinophils in the diagnosis of acute interstitial nephritis
| Reference | Patients (N)/ Eosinophil Stain | Sensitivity | Specificity | Other Diagnoses |
| Corwin et al. (4) | 65/Wright | 8/9 (88%) | 29/56 (52%) | UTI (12/25), RCIN (3/4), CKD (2/5), GN (2/2), PYN (2/4) |
| Nolan et al. (6) | 92/Hansel | 10/11 (91%) | 69/81 (85%) | ATN (0/30), PYN (0/10), GN (1/6), RPGN (4/10), prostatitis (6/10) |
| Corwin et al. (7) | 183/Hansel | 5/8 (63%) | 160/175 (93%) | ATN (1/29), UTI (5/37), DN (4/17), PR (1/39) |
| Ruffing et al. (8) | 51/Hansel | 6/15 (40%) | 26/36 (72%) | GN (4/6), CKD (2/5), PYN (1/2), PR (1/3) |
| Total | 391 | 29/43 (67%) | 284/348 (82%) |
UTI, urinary tract infection; RCIN, radiocontrast-induced nephropathy; PYN, pyelonephritis; ATN, acute tubular necrosis; RPGN, rapidly progressive GN; DN, diabetic nephropathy; PR, prerenal.