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Table 3 Univariate analysis of the prognosis of patients

From: Clinical characteristics and outcomes of cervical lymph node metastasis from unknown primary sites: a single institution’s 14-year experience

Features

No. of patient

OS

PFS

P value

P value

Gender

 Male

231

  

 Female

134

0.631

0.661

Age

  ≤ 60 years

205

  

  > 60 years

160

0.001

0.002

Smoking

 None

224

  

 No more than 20 years and 20/day

40

  

 Above 20 years or 20/day

101

0.704

0.667

Alcohol

 None

300

  

 No more than 20 years and 250 g/day

39

  

 Above 20 years or above 250g/day

26

0.278

0.281

Lymph node level

 II/III

226

  

 IV

139

0.546

0.564

Pathological type

 Squamous cell carcinoma

192

  

 Adenocarcinoma

118

  

 Other types

55

0.833

0.750

Pathological grade

 Highly differentiated

204

  

 Moderately differentiated

9

  

 Poorly differentiated

152

0.001

0.001

Involved nodal stage

 N1

38

  

 N2a

22

  

 N2b

185

  

 N2c

110

  

 N3

10

0.029

0.025

Initial treatment

 No treatment

54

  

 Chemotherapy

91

  

 Surgery

192

  

 Radiotherapy

28

0.037

0.017

Local recurrence

 Yes

20

  

 No

345

0.065

0.051

Distant metastasis

 Yes

81

  

 No

284

0.001

0.001