Table 1.
Baseline characteristics of enrolled patients in this study.
| Features | Single stent | Double stents | Triple stents | X/F | p-value |
|---|---|---|---|---|---|
| Male/female | 31/50 | 40/34 | 23/35 | 4.555 | 0.103 |
| Age (years) | 41.44 ± 13.56 | 46.81 ± 14.09* | 46.59 ± 12.32* | 3.870 | 0.022 |
| BMI (kg/m2) | 22.81 ± 3.04 | 23.34 ± 3.12 | 23.40 ± 2.87 | 0.864 | 0.423 |
| SCR (umol/L) | 80 (67, 99) | 78 (67, 88) | 84 (65, 100) | 0.641 | 0.726 |
| Length of US (cm) | 1 (0.5, 1) | 1 (1, 2) | 1.5 (1, 2)* | 10.035 | 0.007 |
| Side | 3.002 | 0.223 | |||
| Left | 49 | 35 | 29 | ||
| Right | 32 | 39 | 29 | ||
| 1 m after UTR | 2.985 | 0.225 | |||
| Valid | 66 | 52 | 46 | ||
| Invalid | 15 | 22 | 12 | ||
| 6 m after UTR | 6.343 | 0.042 | |||
| Valid | 50 | 39** | 43 | ||
| Invalid | 31 | 35 | 15 | ||
| 12 m after UTR | 7.262 | 0.026 | |||
| Valid | 42 | 36** | 41 | ||
| Invalid | 39 | 38 | 17 | ||
| Last follow-up | 8.444 | 0.015 | |||
| Valid | 38 | 32** | 39 | ||
| Invalid | 43 | 42 | 19 | ||
| Level of BIS | 6.370 | 0.173 | |||
| Mild | 51 | 45 | 25 | ||
| Moderate | 19 | 17 | 21 | ||
| Severe | 11 | 12 | 12 |
SCR, serum creatinine; US, ureteral stricture; UTR, ureteral stent removal; IS, bladder irritation symptoms.
* Compared to a single stent, p < 0.05; **Compared to three stents, p < 0.05.