Table 1 Changes of primary tumor in patients with renal cell carcinoma before and at 12 weeks after neoadjuvant therapy

Maximal diameter (cm)^a

 Before therapy

7.2 (6.2–8.5)

6.4 (5.7–10.3)

6.8 (5.8–11.0)

 After therapy

5.2 (4.4–7.4)

5.6 (5.1–9.8)

6.4 (4.8–6.4)

 Reduction

1.5 (1.2–2.2)

0.8 (0.5–1.1)

0.5 (0.4–0.8)

Reduction rate (%)^a

22.4 (13.8–30)

12.2 (7.1–14.1)

6.9 (3.7–12.0)

> 10% reduction [cases (%)]

13 (86.7)

16 (66.7)

8 (26.7)