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Table 1 Patient and tumor characteristics

From: Patterns of recurrence after selective postoperative radiation therapy for patients with head and neck squamous cell carcinoma

 

Bilateral RT

Unilateral RT

 

(n = 38)

(n = 34)

p value

Primary site

 Oral cavity

10

13

0.556

 Oropharynx

12

8

 Hypopharynx

10

9

 Larynx

5

2

 Others

1

2

T-classification

 T1

4

4

0.673

 T2

13

11

 T3

5

4

 T4

8

4

 Rec

8

11

  rT0

6

8

  rT1

0

0

  rT2

2

2

  rT3

0

0

  rT4

0

1

N-classification

 N0

0

2

0.124

 N1

0

0

 N2a

3

2

 N2b

18

17

 N2c

8

1

 N3

1

1

 Rec

8

11

  rN1

1

1

  rN2

7

10

  rN3

0

0

Stage

 III

1

1

0.637

 IVA

28

20

 IVB

1

2

 Rec

8

11

  rIII

1

1

  rIVA

7

10

Bilateral neck LN metastasis

 Yes

9

1

0.011*

 No

29

33

Necrosis in LN

 Yes

21

21

0.401

 No

14

9

 Unknown

3

4

Maximum diameter of LN (cm)

 Median

2.5

2.7

0.783

 Range

0.4–7.5

0.8–4.1

Number of LN metastasis

 0–1

6

13

0.031*

  ≥ 2

32

21

Sex

 Male

32

26

0.217

 Female

6

8

Age

 Median

63

63

0.270

 Range

38–80

34–84

  1. RT radiation therapy, Rec recurrence, LN lymph node. *A P value of ≤0.05 was considered statistically significant
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BMC Cancer

ISSN: 1471-2407

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