Table 2 Univariate and multivariate Cox regression analyses by cortactin expression levels

From: Prognostic significance of cortactin levels in head and neck squamous cell carcinoma: comparison with epidermal growth factor receptor status

Cortactin status

Mean time to recurrence (months)

Percentage of recurrence (95% confidence interval)

Hazard ratio (95% confidence interval)

P

Univariate

Local recurrence

 Overexpressor

32.0

49.1% (39–66)

6.032 (1.6–27.1)

0.014

 Nonoverexpressor

47.0

28.0% (16–49)

0.169 (0.05–0.8)

 

Disease-free survival

 Overexpressor

22.2

61.5% (40–81)

2.586 (1.2–5.9)

0.007

 Nonoverexpressor

34.7

17.5% (11–29)

0.379 (0.3–0.8)

 

Overall survival

 Overexpressor

29.2

57.8% (35–80)

2.275 (1.2–4.7)

0.024

 Nonoverexpressor

42.5

20.9% (11–30)

0.425 (0.3–0.9)

 

Multivariate

Variable

Hazard ratio

95% confidence interval

 

P

Local recurrence

 Tumour type

1.675

0.8–3.7

0.20

 TNM stage

1.412

0.8–2.4

0.20

 Histologic grade

0.965

0.6–1.6

0.90

 Cortactin overexpressor

5.293

1.2–23.6

0.029*

Disease-free survival

 Tumour type

1.616

0.9–3.0

0.13

 TNM stage

1.453

1.0–2.1

0.06

 Histologic grade

1.033

0.7–1.5

0.87

 Cortactin overexpressor

3.000

1.3–7.0

0.010*

Overall survival

 Tumour type

1.648

0.9–3.1

0.12

 TNM stage

1.679

1.1–2.5

0.014*

 Histologic grade

0.984

0.7–1.5

0.94

 Cortactin overexpressor

2.449

1.1–5.7

0.038*

  1. TNM=tumour node metastasis.
  2. *Significant at the 0.05 level.