Table 3 Multivariate analysis of prognostic factors in 69 patients with NPC.

From: The Prognostic Value of Deficient Mismatch Repair in Stage II–IVa Nasopharyngeal Carcinoma in the Era of IMRT

Characteristic

OS

PFS

LRFS

DMFS

HR

95% CI

P

HR

95% CI

P

HR

95% CI

P

HR

95% CI

P

Age (years)*

<53

NA

NA

NA

0.25

0.09~0.72

0.01

0.10

0.01~0.92

0.04

NA

NA

NA

≥53

Ref

  

Ref

  

Ref

  

Ref

  

Clinical stage*a

II

0.00

0.00~5.95

0.96

NA

NA

NA

NA

NA

NA

NA

NA

NA

III

0.37

0.14~0.97

0.04

NA

NA

NA

NA

NA

NA

NA

NA

NA

IVa

Ref

  

Ref

  

Ref

  

Ref

  

T category*a

T1-2

NA

NA

NA

0.11

0.02~0.86

0.04

0.00

0.00

0.98

0.13

0.02~1.02

0.05

T3-4

Ref

  

Ref

  

Ref

  

Ref

  

N category*a

N0-2

NA

NA

NA

NA

NA

NA

NA

NA

NA

NA

NA

NA

N3

Ref

  

Ref

  

Ref

  

Ref

  

Therapy regimens*

IMRT

Ref

  

Ref

  

Ref

  

Ref

  

CCRT

NA

NA

NA

NA

NA

NA

NA

NA

NA

NA

NA

NA

ACCRT

NA

NA

NA

NA

NA

NA

NA

NA

NA

NA

NA

NA

MMR status*

dMMR

NA

NA

NA

NA

NA

NA

NA

NA

NA

0.25

0.09~0.75

0.01

pMMR

Ref

  

Ref

  

Ref

  

Ref

  
  1. *Factors brought into the Cox proportional hazards regression model. aAccording to the AJCC TNM classification of malignant tumours 8th ed.
  2. Abbreviations: Ref: reference group; NPC: nasopharyngeal carcinoma; MMR: mismatch repair; dMMR: deficient MMR; pMMR: proficient MMR; OS: overall survival; PFS: progression-free survival; DMFS: distant metastasis-free survival; LRFS: local recurrence-free survival; IMRT: intensity-modulated radiotherapy; CCRT: concurrent chemoradiotherapy; ACCRT: asynchronous combination chemoradiotherapy; HR: hazard ratio; NA: Not applicable.