Table 3 Univariate analysis for cancer death and recurrence

Sex

- *

-

-

-

-

-

Age

.94 per year of age

.89-.99

.009

.96 per year of age

.93-1.01

.064

Degree of differentiation (well, moderate, poor)

-

-

-

-

-

-

Type of parotidectomy

(superficial v. total)

-

-

-

-

-

-

Facial nerve preservation (yes v. no)

-

-

-

-

-

-

Neck dissection (yes v. no)

-

-

-

-

-

-

P - Stage (1, 2, 3)

2.59 per unit increase

.93-8.33

.067

1.97

.93-4.38

.075

N - Stage (0, 1, 2)

1.85 per unit increase

.95-3.58

.069

1.92

1.17-3.11

.011

Tumor dimension (cm)

1.37

.99-1.91

.055

1.24

.98-1.58

.072

Neck node status (yes v. no)

2.70

.75-9.73

.124

3.20

1.24-8.24

.017

Neck node status (5 point scale)

1.46 per unit increase

1.02-2.05

.039

1.49 per unit increase

1.13-1.92

.006

Intraparotid LN status (yes v. no)

-

-

-

-

-

-

Intraparotid LN status (5 point scale)

-

-

-

-

-

-

Extraparotid extension (yes v. no)

-

-

-

-

-

-

Perineural invasion (yes v. no)

5.76

1.08-106.3

.039

3.26

1.07-14.1

.036

Lymphovascular invasion (yes v. no)

-

-

-

-

-

-

Superficial margin status (negative, narrow, positive)

-

-

-

-

-

-

Deep margin status (negative, narrow, positive)

-

-

-

-

-

-

Combined margin status (negative, narrow, positive)

-

-

-

1.82

.95-4.07

.073

Radiation therapy (yes v. no)

-

-

-

-

-

-