Table 2. Patient demographics and USD score and classification system of test group.
| Variable | Low surgery complexity | High surgery complexity | P |
|---|---|---|---|
| Number | 32 | 32 | – |
| Gender | 0.313 | ||
| Male | 16 (50.0) | 12 (37.5) | |
| Female | 16 (50.0) | 20 (62.5) | |
| Age (year) | 39.38±14.67 | 38.03±13.68 | 0.706 |
| BMI (kg/m2) | 23.58±3.36 | 23.11±3.15 | 0.567 |
| USD system (points) | |||
| Etiology score | 2 [1–2] | 2 [2–2] | 0.003 |
| Segment score | 1 [0–3] | 3 [0–3] | <0.001 |
| Length score | 1 [1–3] | 5 [1–5] | <0.001 |
| Aggregate score | 4 [2–8] | 10 [4–10] | <0.001 |
| Surgical procedure complex score (points) | 3 [2–3] | 6 [4–6] | <0.001 |
| Operation time (min) | 142.06±61.40 | 261.88±72.61 | <0.001 |
| Estimated blood loss (mL) | 20 [0–100] | 75 [10–1,000] | <0.001 |
| Surgical procedure complex score (points) | 3 [2–3] | 6 [4–6] | <0.001 |
Data are presented in terms of mean ± standard deviation, median [range] or n (%). USD, ureter stricture disease; BMI, body mass index; EBL, estimated blood loss.