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Table 1 Comparison of demographic and pathologic variables between the submandibular gland (SMG) preservation and SMG excision groups

From: Impact of submandibular gland preservation in neck management of early-stage buccal squamous cell carcinoma on locoregional control and disease-specific survival

Variables

SMG preservation

SMG excision

p

 

N = 31

N = 106

 

Age

55.4 (38–65)

60.5 (35–78)

0.034

Sex

 Male

20 (64.5%)

83 (78.3%)

 

 Female

11 (35.5%)

23 (21.7%)

0.118

Smoker

 Yes

19 (61.3%)

79 (74.5%)

 

 No

12 (38.7%)

27 (25.5%)

0.151

Drinker

 Yes

15 (48.4%)

57 (53.8%)

 

 No

16 (51.6%)

49 (46.2%)

0.597

Clinical tumor stage

 T1

17 (54.8%)

45 (42.5%)

 

 T2

14 (45.2%)

61 (57.5%)

0.223

Pathologic tumor stage

 T1

15 (48.4%)

40 (37.7%)

 

 T2

16 (51.6%)

66 (62.3%)

0.287

Perineural invasion

 Positive

4 (12.9%)

10 (9.4%)

 

 Negative

27 (87.1%)

96 (90.6%)

0.736

Lymphovascular invasion

 Positive

3 (9.7%)

10 (9.4%)

 

 Negative

28 (90.3%)

96 (90.6%)

1.000

Tumor differentiation

 Well

10 (32.3%)

30 (28.3%)

 

 Moderate

14 (45.2%)

64 (60.4%)

 

 Poor

7 (22.6%)

12 (11.3%)

0.199

Cervical lymph node stage

 N0

25 (80.6%)

88 (83.0%)

 

 N+

6 (19.4%)

18 (17.0%)

0.760

Transient MMN injury*

2 (6.5%)

10 (9.4%)

0.734

Postoperative radiotherapy

4 (12.9%)

23 (21.7%)

0.319

  1. *MMN Marginal mandibular nerve