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Table 5 Multivariate analysis of the time of survival in relation to the Cytokeratins expression and other prognostic factors

From: Cytokeratin 8/18 expression indicates a poor prognosis in squamous cell carcinomas of the oral cavity

Prognosticator

P valuea

RRb

Confidance intervalc

Tumor size

*0.036

1.239

1.0–1.5

Nodal status

*0.000

1.866

1.4–2.4

CK5/6

0.350

1.167

0.8–1.6

CK1

0.931

0.985

0.7–1.4

CK10

0.852

0.968

0.7–1.4

CK19

0.227

1.163

0.9–1.5

CK14

0.470

0.872

0.6–1.3

CK8/18

*0.024

1.487

1.1–2.1

  1. a The partially nonparametric regression model of Cox (1972) was used to evaluate the predictive power of vatious combinations of prognosticators in a multivariate manner.
  2. b RR, relative risk
  3. c 95% confidence interval
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BMC Cancer

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