Table 2 Univariable and multivariable logistic regression to determine odds of diagnosis with IDC + DCIS versus IDC alone.

From: Overall survival is improved when DCIS accompanies invasive breast cancer

Variable

Univariable Analysis

Multivariable Analysis

OR

95% CI

p value

aOR

95% CI

p value

Age (Ref: <60):

≥60

0.86

0.85–0.87

<0.001

0.80

0.79–0.81

<0.001

Race (Ref: White):

Non-White

0.94

0.92–0.95

<0.001

1.01

0.99–1.02

0.199

Charlson-Deyo Score (Ref: 0):

≥1

0.97

0.96–0.99

0.001

1.00

0.99–1.02

0.624

T Stage (Ref: T1):

T2

0.74

0.73–0.75

<0.001

0.75

0.74–0.76

<0.001

T3

0.54

0.53–0.56

<0.001

0.55

0.53–0.57

<0.001

T4

0.35

0.34–0.36

<0.001

0.36

0.35–0.38

<0.001

N Stage (Ref: N0):

N1

0.75

0.74–0.76

<0.001

0.86

0.85–0.88

<0.001

N2

0.58

0.56–0.60

<0.001

0.74

0.71–0.77

<0.001

N3

0.54

0.51–0.57

<0.001

0.73

0.69–0.78

<0.001

ER Status (Ref: Positive):

Negative

0.56

0.55–0.57

<0.001

0.68

0.67–0.70

<0.001

PR Status(Ref: Positive):

Negative

0.63

0.62–0.64

<0.001

0.85

0.84–0.87

<0.001

Her2 Status (Ref: Negative):

Positive

1.28

1.26–1.31

<0.001

1.48

1.45–1.51

<0.001

Unknown

0.91

0.90–0.92

<0.001

0.95

0.94–0.97

<0.001

Surgery Type (Ref: Partial Mastectomy):

Mastectomy

1.13

1.11–1.14

<0.001

1.37

1.36–1.40

<0.001

Tumor Grade (Ref: Low/Intermediate):

High

0.73

0.72–0.73

<0.001

0.93

0.92–0.95

<0.001

  1. Abbreviations: aOR, adjusted odds ratio; CI, confidence interval; IDC, invasive ductal carcinoma; IDC + DCIS, invasive ductal carcinoma with ductal carcinoma in situ.
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