Table 1 Patient, disease and treatment characteristics.

From: Prognostic significance of pre-treatment neutrophil-to-lymphocyte ratio (NLR) in patients with oropharyngeal cancer treated with radiotherapy

Parameters

Cohort (n = 848)

Percentage (%)

Age (median)

57 years (range: 29–87)

 

Sex

  Male

741

87.4

  Female

107

12.6

Smoking status

  Never

364

42.9

  Previous <10 pack years

97

11.4

  Previous >10 pack years

215

25.3

  Current

172

20.4

Primary site

  Base of tongue

463

54.7

  Tonsil

368

43.4

  Soft palate

10

1.2

  Pharyngeal wall

7

0.8

Tumour (T) stagea

  T1

155

18.2

  T2

304

35.9

  T3

209

24.6

  T4

162

19.1

  Tx

18

2.1

Nodal (N) stagea

  N0

41

4.8

  N1

74

8.7

  N2a

51

6.0

  N2b

423

49.8

  N2c

211

25.0

  N3

45

5.3

  Nx

3

0.4

Stage (AJCC Seventh edition)a

 II

11

1.3

  III

82

9.7

  IV

755

89.0

HPV/p16 status

  Positive

602

71.0

  Negative

71

8.4

  Unknown

175

20.6

Dose (median)

6996 cGy (range: 4800–7396)

 

Number of fractions (median)

33 (range: 28–42)

 

Induction chemotherapy

  Yes

382

45.1

  No

466

54.9

Concurrent chemotherapy

  Yes

742

87.5

  No

106

12.5

  1. aTumours were staged according to the AJCC Seventh edition.
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