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Table 2 Multivariate analysis of prognostic factors for patients with nasopharyngeal carcinoma

From: Nasopharyngeal carcinoma with paranasal sinus invasion: the prognostic significance and the evidence-based study basis of its T-staging category according to the AJCC staging system

Endpoint and Variable

P Value

Odds Ratio (95% confidence interval)

Overall survival

Age

<0.01

1.80(1.35,2.42)

Paranasal sinus involvement

<0.01

1.76(1.28.2.42)

Parapharyngeal space extension

<0.01

1.95(1.31,2.90)

Intracranial extension

<0.01

1.74(1.27,2.40)

N classification

0.02

0.69(0.51,0.93)

Distant metastasis-free survival

Age

<0.01

1.75(1.23,2.48)

Paranasal sinus involvement

0.02

1.58(1.08,2.30)

Parapharyngeal space extension

0.04

1.62(1.02,2.58)

Skull base erosion

<0.01

2.73(1.45,5.16)

N classification

<0.01

0.63(0.44, 0.89)

Local relapse-free survival

Paranasal sinus involvement

0.02

1.91(1.11,3.27)