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Table 2 Individual and comprehensive Cox regression models predicting the persistence or recurrence of WDTC

From: Factors determining the persistence or recurrence of well-differentiated thyroid cancer treated by thyroidectomy and/or radioiodine in the Boston, Massachusetts area: A retrospective chart review

Table 2

 

n

number with persistence or recurrence

hazard ratio

95% CI

p

Patient-associated factors

354

44

  

0.02

   Gender

  

0.54

0.28, 1.03

0.06

   Age

  

0.97

0.93, 1.01

0.09

   Ethnicity

  

1.17

0.96, 1.42

0.12

   Interaction of age and time to persistence or recurrence

  

1.03

1.01, 1.06

0.01

Tumor-associated factors

368

39

  

0.80

   Size (dichotomized)

  

0.81

0.28, 2.32

0.70

   Number of foci

  

0.88

0.61, 1.27

0.48

   Histology

  

0.89

0.53, 1.49

0.66

Comprehensive model

309

37

  

0.04

   Gender

  

0.57

0.27, 1.21

0.14

   Age

  

0.95

0.90, 0.99

0.02

   Ethnicity

  

1.17

0.96, 1.44

0.13

   Tumor size

  

0.57

0.19, 1.68

0.31

   Number of foci

  

0.94

0.65, 1.36

0.74

   Histology

  

0.68

0.32, 1.44

0.31

   Interaction of age and time to recurrence or persistence

  

1.04

1.02, 1.07

<0.01