Table 3 Risk factors for contralateral recurrence of patients with de novo UTUC

Gender

Male

1 (Ref.)

Female

0.519 (0.158–1.703)

0.279

Age

 ≤ 65y

1 (Ref.)

 > 65y

0.910 (0.462–1.792)

0.785

AA exposure

No

1 (Ref.)

1 (Ref.)

Yes

4.817 (1.154–20.16)

0.031

4.714 (1.096–20.272)

0.037

Tumor staging

 < T2

1 (Ref.)

 ≥ T2

1.724 (0.801–3.710)

0.163

Lymph node staging

N0

1 (Ref.)

N + 

0.047 (0.000–8582.93)

0.621

Tumor grade

G1/G2

1 (Ref.)

G3

0.796 (0.376–1.687)

0.552

Multifocality

No

1 (Ref.)

1 (Ref.)

Yes

2.212 (1.033–4.737)

0.041

1.196 (0.438–3.271)

0.727

Concomitant BC

No

1 (Ref.)

Yes

1.786 (0.874–3.651)

0.112

Tumor location

Renal pelvis only

1 (Ref.)

1 (Ref.)

Ureter only

1.676 (0.533–5.273)

0.377

2.132 (0.665–6.836)

0.203

Pelvis and ureter

3.114 (1.052–9.215)

0.040

2.861 (0.787–10.396)

0.110