Table 2 Recurrence rate according to the grade of venous invasion

WMDA

 *Recurrence (%)

8/68 (11.8%)

9/57 (15.8%)

17/23 (73.9%)

3/4 (75.0%)

37/152 (24.3%)

  RR (95% CI)

Reference

1.342 (0.565–3.200)

6.283 (3.364–10.834)

6.375 (2.209–9.023)

  **p value

0.604

 < 0.001

0.010

 Median DTR (range)

438.5 (268–1264)

593 (105–2212)

232 (18–2561)

300 (51–368)

374 (18–2561)

PDA

 Recurrence (%)

5/18 (27.8%)

17/52 (32.7%)

6/18 (33.3%)

6/10 (60.0%)

34/98 (34.7%)

  RR (95% CI)

Reference

1.177 (0.555–2.839)

1.200 (0.455–3.217)

2.160 (0.874–4.695)

  p value

0.776

1.000

0.125

 Median DTR (range)

608 (195–3407)

341 (123–1070)

207.5 (139–539)

142.5 (87–297)

244 (87–3407)

MUA

 Recurrence (%)

5/33 (15.2%)

8/26 (30.8%)

2/5 (40.0%)

15/64 (23.4%)

  RR (95% CI)

Reference

2.031 (0.781–5.423)

2.640 (0.645–7.310)

  p value

0.209

0.223

 Median DTR (range)

547 (423–1600)

582.5 (22–993)

633.5 (282–985)

572 (22–1600)

SRCC

 Recurrence (%)

0/1 (0.0%)

2/6 (33.3%)

0/1 (0.0%)

1/1 (100.0%)

3/9 (33.3%)

  RR (95% CI)

Reference

N.A

N.A

N.A

  p value

 Median DTR (range)

785.5 (436–1135)

2710 (2710–2710)

1135 (436–2710)