Table 2. Clinical/pathological characteristics of the patient cohort.
| Variable | Overall | CKD 1–3 | CKD 4–5 | p-value |
|---|---|---|---|---|
| No. of patient | 117 | 91 | 26 | |
| Mean age (y) | 56.8±14.1 | 55.8±14.0 | 60.7±14.1 | 0.985 |
| Gender | 0.604 | |||
| Male | 27 (23.1) | 20 (22.0) | 7 (26.9) | |
| Female | 90 (76.9) | 71 (78.0) | 19 (73.1) | |
| Diabetes | 14 (12.0) | 9 (9.9) | 5 (19.2) | 0.300 |
| Hypertension | 28 (23.9) | 20 (22.0) | 8 (30.8) | 0.435 |
| Mean body mass index (kg/m2) | 22.4±4.0 | 22.7±4.2 | 21.7±3.4 | 0.749 |
| Pre-stent eGFR (mL/min/1.73 m2) | 53.4±27.3 | 63.7±21.3 | 17.4±9.2 | 0.001 |
| Ureteral obstruction site | 0.817 | |||
| Proximal | 29 (24.8) | 23 (25.3) | 6 (23.1) | |
| Mid | 25 (21.4) | 21 (23.1) | 4 (15.4) | |
| Distal | 58 (49.6) | 44 (48.3) | 14 (53.8) | |
| Multiple or diffuse | 5 (4.3) | 3 (3.3) | 2 (7.7) | |
| Bilateral obstruction | 47 (40.2) | 27 (29.7) | 20 (76.9) | 0.001 |
| Symptom (pain) | 69 (59.0) | 49 (53.8) | 20 (76.9) | 0.043 |
| Pre-stent pyuria | 34 (29.1) | 21 (23.1) | 13 (50.0) | 0.014 |
| Post-stent systemic therapy | 75 (64.1) | 59 (64.8) | 16 (61.5) | 0.818 |
| Post-stent disease progression | 86 (73.5) | 64 (70.3) | 22 (84.6) | 0.208 |
| Mean number of stent changes | 4.9±5.7 | 4.9±5.9 | 4.4±5.4 | 0.754 |
| Stent failure | 30 (25.6) | 20 (22.0) | 10 (38.5) | 0.125 |
| Complications | 14 (12.0) | 11 (12.1) | 3 (11.5) | 0.516 |
| UTI or Sepsis | 8 | 6 | 2 | |
| Hematuria | 6 | 5 | 1 |
Values are presented as number only, mean±standard deviation, or number (%).
CKD, chronic kidney disease; eGFR, estimated glomerular filtration rate; UTI, urinary tract infection.