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Table 1 Patient and tumor characteristics for the analyzed group

From: Circulating HPV16 DNA may complement imaging assessment of early treatment efficacy in patients with HPV-positive oropharyngeal cancer

Clinical parameter

No of cases

66 (%)

Pre-treatment viral load median (u.q.–l.q) [copies/ml]

cfHPV16 DNA in the 12th week

p value

Positive

No of cases (%)

Negative

No of cases (%)

Tumor classification

 T1

14 (21)

76 (25–177)

0 (0)

14 (23)

0.327

 T2

18 (27)

1422 (191–7913)

1 (17)

17 (28)

 T3

19 (29)

2874 (203–12,320)

2 (33)

17 (28)

 T4

15 (23)

1548 (176–5239)

3 (50)

12 (20)

Nodal classification

 p

6 (9)

61 (21–229)

0 (0)

6 (10)

0.232

 N0–N1

8 (12)

1283 (252–3607)

2 (330

6 (10)

 N2–N3

52 (79)

1489 (140–9092)

4 (67)

48 (80)

Treatment

 RT

6 (9)

1722 (229–2022)

0 (0)

6 (10)

0.405

 CH-RT

9 (14)

7913 (167–13,412)

2 (33)

7 (12)

 CH-CHRT

30 (45)

2071 (163–10,523)

3 (50)

27 (45)

 CHRT

21 (32)

146 (36–1152)

1 (17)

20 (33)

Cigarette consumption

 Never

33 (50)

545 (101–7913)

3 (50)

30 (50)

0.734

 ≥ 5 years

10 (15)

1722 (163–23,008)

0 (0)

10 (17)

 Current smokers

23 (35)

1396 (176–5600)

3 (50)

20 (33)

  1. p post resection, RT radiotherapy, CH-RT induction chemotherapy, CH-CHRT induction chemotherapy followed by radiochemotherapy, CHRT radiochemotherapy, l.q. lower quartile, u.q. upper quartile