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Table 2 Factors associated with complete response (CR) on first post treatment MRI (ptMRI)

From: Utility of magnetic resonance imaging in determining treatment response and local recurrence in nasopharyngeal carcinoma treated curatively

Variable

Univariate analysis

Multivariate analysis

OR

95% CI

P

OR

95% CI

P

Age

1.00

0.98–1.03

0.772

   

Gender:

 Female

0.94

0.52–1.71

0.84

   

 Male (Ref)

1

     

T stage:

 T1

3.63

1.82–7.20

< 0.001

2.96

1.07–8.13

0.036

 T2

2.83

1.07–7.46

0.035

2.24

0.56–8.90

0.25

 T3

1.79

0.84–3.85

0.134

   

 T4 (Ref)

1

     

N stage:

 N0

1.87

0.76–4.56

0.136

   

 N1

0.90

0.42–1.94

0.86

   

 N2

0.62

0.28–1.36

0.24

   

 N3 (Ref)

1

     

AJCC Stage:

 Stage I

4.2

1.67–10.51

0.002

1.78

0.39–8.11

0.046

 Stage II

2.31

1.12–4.76

0.023

0.75

0.23–2.46

0.633

 Stage III

1.29

0.68–2.44

0.433

   

 Stage IV (Ref)

1

     

Treatment modality:

 RT alone

3.12

1.45–6.74

0.004

1.36

0.39–4.72

0.627

 ChemoRT

2.51

1.32–4.78

0.005

2.46

0.98–6.16

0.054

 Induction chemo (Ref)

1

     
  1. OR Odds Ratio, CI Confidence Interval, AJCC American Joint Committee on Cancer, RT Radiotherapy, Ref Reference