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Table 2 Analysis of IR signs and the final results by univariate and age-adjusted multivariate logistic regression.

From: Evaluation of the diagnostic performance of infrared imaging of the breast: a preliminary study

IR signs scores

 

M

B

p*

Univariate #OR(95%CI)(p**)

##Multivariate #OR(95%CI)(p**)

IR1 0

 

68

93

<0.0001

1

1

1

 

66

27

 

3.3(1.9-5.8)(<0.0001)

1.5(0.7-2.9) (0.29)

2

 

40

4

 

13.7(4.7-40.0)(<0.0001)

6.8(2.0-23.5)(0.003)

IR2 0

 

70

78

0.0001

1

1

1

 

104

46

 

2.5(1.6-4.0)(0.0001)

1.2(0.6-2.3) (0.61)

IR3&

 

174

124

-

1.4(1.2-1.7)(<0.0001)

1.2(0.95-1.4)(0.13)

IR4 0

 

140

114

<0.01

1

1

1

 

34

10

 

2.8(1.3-5.8)(<0.01)

2.8(1.1-6.8)(0.024)

IR5 0

 

38

77

<0.0001

1

1

1

 

136

47

 

5.9(3.5-9.8)(<0.0001)

2.8(1.4-5.8)(0.005)

  1. M: malignant lesions; B: benign lesions; CI: confidence interval.
  2. #OR: odds ratio; ##multivariate: age-adjusted multivariate regression model.
  3. &: continuous variable.
  4. p: p value estimated by *Chi-square test, **logistic regression analysis.