Table 2 Univariate and multivariate Cox regression analyses of PFS in 36 enrolled adult Xp11.2 RCC patients.

From: PD-L1 expression in Xp11.2 translocation renal cell carcinoma: Indicator of tumor aggressiveness

Covariates

Univariate analysis

Multivariate analysis

HR (95% CI)

P value

HR (95% CI)

P value

Age at surgery

1.0 (0.9–1.0)

0.068

  

Sex (male vs. female)

0.6 (0.3–1.5)

0.297

  

Clinical manifestation (incidental vs. symptomatic)

0.9 (0.4–2.2)

0.888

  

Laterality (left vs. right)

1.2 (0.5–2.7)

0.725

  

Surgical option (radical vs. partical)

0.4 (0.1–1.6)

0.186

  

Tumor size

1.1 (0.9–1.2)

0.324

  

T stage (T1-T2 vs. T3-T4)

3.8 (1.5–9.8)

0.005

2.5 (0.8–7.6)

0.097

N stage (N0 vs. N1)

5.6 (2.0–15.5)

0.001

4.0 (1.2–13.7)

0.025

M stage (M0 vs. M1)

13.7 (3.5–54.4)

<0.001

9.6 (2.0–45.0)

0.004

ISUP grade (2 vs. 3 or 4)

0.6 (0.2–1.9)

0.375

  

PD-L1 expression (negative vs. positive)

4.7 (1.7–13.0)

0.003

3.7 (1.3–10.9)

0.018

  1. PFS, Progression-free survival; Xp11.2 RCC, Xp11.2 translocation renal cell carcinoma.