Comparisons of clinical characteristics between patients with different degrees of renal artery stenosis.
| < 50% Stenosis, n = 47 | 50–75% Stenosis, n = 51 | > 75% Stenosis, n = 74 | P | |
|---|---|---|---|---|
| Demographic characteristics | ||||
| Female | 33 (70.21) | 36 (70.59) | 51 (68.92) | 0.47 |
| Clinical manifestations | ||||
| Systemic symptoms | 8 (17.02) | 9 (17.64) | 18 (24.32) | 0.04 |
| Ischemia symptoms | 11 (23.40) | 10 (19.61) | 16 (21.62) | 0.31 |
| Physical signs | ||||
| Pulselessness | 8 (17.02) | 7 (13.73) | 14 (18.92) | 0.48 |
| Vascular murmur | 9 (19.15) | 8 (15.69) | 8 (10.81) | 0.32 |
| Hypertension at presentation | 12 (25.53) | 21 (41.18) | 52 (70.27) | < 0.01 |
| Refractory hypertension | ||||
| at presentation | 8 (17.02) | 12 (23.53) | 31 (41.89) | 0.02 |
| Renal insufficiency at presentation | 5 (10.64) | 8 (15.69) | 21 (28.38) | 0.04 |
| Treatments at presentation | ||||
| GC, mg/d, median dose (IQR) | 25 (20–35) | 30 (15–45) | 40 (35–55) | 0.03 |
| Immunosuppressant∗ | 38 (80.85) | 49 (96.08) | 74 (100) | 0.81 |
| Biological agents† | 1 (2.13) | 2 (3.92) | 4 (5.41) | 0.07 |
| Revascularization | 0 | 5 (9.80) | 41(55.41) | < 0.01 |
| Adverse outcomes | 10 (21.28) | 13 (25.49) | 23 (31.08) | 0.05 |