TABLE 4.
Variables | Crude Cox model | Adj Cox model | ||
---|---|---|---|---|
cHR (95% CI) | p | aHR (95% CI) | p | |
Age | 1.029 (1.017–1.041) | < 0.001* | 1.027 (1.015–1.040) | < 0.001* |
BMI | 0.974 (0.947–1.002) | 0.072 | ||
CIS | ||||
No | 1 | |||
Yes | 1.202 (0.959–1.506) | 0.110 | ||
Grade | ||||
Low grade | 1 | |||
High grade | 1.272 (0.945–1.711) | 0.112 | ||
Location | ||||
Renal pelvis | 1 | 1 | ||
Ureter | 1.201 (0.959–1.503) | 0.110 | 1.238 (0.975–1.572) | 0.080 |
Synchronous | 1.615 (1.246–2.092) | < 0.001* | 1.473 (1.117–1.942) | 0.006* |
LVI | ||||
No | 1 | |||
Yes | 1.689 (1.329–2.145) | < 0.001* | ||
Metastasis | ||||
No | 1 | 1 | ||
Yes | 2.009 (1.557–2.591) | < 0.001* | 1.645 (1.254–2.158) | < 0.001* |
Metformin | ||||
Without metformin | 1 | 1 | ||
With metformin | 0.993 (0.79–1.248) | 0.953 | 1.034 (0.808–1.322) | 0.791 |
Mutifocality | ||||
No | 1 | |||
Yes | 1.409 (1.154–1.72) | < 0.001* | ||
Pathological N stage | ||||
pN0/Nx | 1 | |||
pN1/N2 | 2.152 (1.112–4.167) | 0.023* | ||
eGFR (mL/min/1.73 m2) before surgery | 0.995 (0.991–0.999) | 0.009* | ||
Pathological T stage | ||||
pT < 2 | 1 | 1 | ||
pT ≥ 2 | 1.724 (1.413–2.102) | < 0.001* | 1.429 (1.146–1.782) | 0.002* |
Gender | ||||
Male | 1 | 1 | ||
Female | 0.645 (0.53–0.784) | < 0.001* | 0.639 (0.516–0.791) | < 0.001* |
Laterality | ||||
Left | 1 | |||
Right | 1.005 (0.826–1.223) | 0.960 | ||
Both | 1.125 (0.360–3.519) | 0.839 | ||
Size | ||||
< 1 cm | 1 | |||
< 2 cm | 1.057 (0.643–1.738) | 0.826 | ||
< 3 cm | 1.419 (0.868–2.318) | 0.163 | ||
≥ 3 cm | 1.500 (0.944–2.383) | 0.086 |
Abbreviations: BMI, body mass index; CI, confidence interval; CIS, carcinoma in situ; HR, hazard ratio; LVI, lymphovascular invasion.
p < 0.05.