Table 2 Multivariate analysis in 494 patients with metastatic nodes

Gender

 Male

1 (reference)

1 (reference)

1 (reference)

 Female

1.47 (0.86–2.52)

1.10 (0.72–1.66)

0.91 (0.55–1.50)

Age

  ≤ 47 years

1 (reference)

1 (reference)

1 (reference)

  > 47 years

1.56 (0.93–2.60)

1.56 (1.08–2.26)

1.53 (1.00–2.33)

T stage

 T1

1 (reference)

1 (reference)

1 (reference)

 T2

4.42 (0.57–34.38)

2.67 (0.93–7.68)

2.10 (0.71–6.18)

 T3

4.61 (0.62–34.46)

2.74 (0.98–7.66)

2.20 (0.78–6.23)

 T4

19.72 (2.64–147.48)

4.71 (1.63–13.61)

3.60 (1.22–10.63)

Chemotherapy

 CCRT alone

1 (reference)

1 (reference)

1 (reference)

 CCRT + NAC/AC

0.47 (0.22–1.00)

0.92 (0.47–1.79)

0.96 (0.43–2.14)

Laterality of cervical positive LNs

 RLNs only

1 (reference)

1 (reference)

1 (reference)

 Unilateral

0.47 (0.13–1.72)

0.74 (0.26–2.06)

0.41 (0.12–1.40)

 Bilateral

1.02 (0.29–3.55)

1.08 (0.39–2.98)

0.72 (0.22–2.41)

Location of positive LNs

 Upper neck only

1 (reference)

1 (reference)

1 (reference)

 Upper + lower neck

2.21 (1.24–3.93)

1.77 (1.16–2.70)

1.84 (1.14–2.96)

Size of positive LNs

  ≤ 6 cm

1 (reference)

1 (reference)

1 (reference)

  > 6 cm

0.97 (0.44–2.12)

1.39 (0.84–2.30)

1.50 (0.88–2.58)

CNN

 No

1 (reference)

1 (reference)

1 (reference)

 Yes

0.81 (0.45–1.44)

0.89 (0.59–1.35)

1.12 (0.70–1.79)

rENE

 No

1 (reference)

1 (reference)

1 (reference)

 Yes

2.50 (1.03–6.08)

2.02 (0.99–4.12)

2.58 (1.02–6.51)

Cervical rCAI

 No

1 (reference)

1 (reference)

1 (reference)

 Yes

1.40 (0.73–2.70)

1.91 (1.17–3.12)

1.79 (1.01–3.17)