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Table 1 Descriptive characteristics of the included patients

From: Predictors of distant metastasis in parotid acinic cell carcinoma

Characteristics

N (%)

Age

  < 55

74 (51.4%)

  ≥ 55

70 (48.6%)

Sex

 Male

61 (42.3%)

 Female

83 (57.6%)

Tumor stage

 T1

42 (29.2%)

 T2

61 (42.4%)

 T3

27 (18.8%)

 T4

14 (9.7%)

Neck node stagea

 N0

46 (55.4%)

 N+

37 (44.6%)

Margin

 Clear

140 (97.2%)

 Positive

4 (2.8%)

Tumour site

 Superficial

131 (91.0%)

 Deep

13 (9.0%)

Perineural invasion

27 (18.8%)

Lymphovascular invasion

21 (14.6%)

High grade transformation

12 (8.3%)

IPN metastasisb

34 (31.8%)

  1. aOnly patients undergoing neck dissection were analyzed
  2. bIPN: intraparotid node metastasis, only patients with IPN information were analyzed