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Table 2 Local recurrence analysis of patients

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

Features

Number

Local recurrence (%)

χ2

P

Gender

 Male

231

19 (8.2)

  

 Female

134

1 (0.7)

9.159

0.001

Age

  ≤ 60 years

205

16 (7.8)

  

  > 60 years

160

4 (2.5)

7.403

0.007

Lymph node level

 II/III

226

12 (5.3)

  

 IV

139

8 (5.8)

0.823

0.346

Pathological type

 Squamous cell carcinoma

192

13 (6.8)

  

 Adenocarcinoma

118

5 (4.2)

  

 Other types

55

2 (3.6)

6.802

0.032

Pathological grade

 Highly differentiated

204

0 (0)

  

 Moderately differentiated

9

2 (22.2)

  

 Poorly differentiated

152

10 (6.5)

6.594

0.086

Involved nodal stage

 N1/2

355

18 (5.1)

  

 N3

10

2 (20.0)

6.298

0.043

Surgery

 Yes

205

6 (2.9)

  

 No

160

14 (8.8)

9.839

0.002

Radiotherapy

 Yes

55

2 (3.6)

  

 No

310

18 (5.8)

0.425

0.750

Chemotherapy

 Yes

171

6 (3.5)

  

 No

194

14 (7.2)

2.412

0.166