Table 4

Comparison of risk factors calculated using the univariate logistic analysis, multivariable logistic analysis and Bootstrap for variables.

Univariate logistic analysis

Multivariate logistic analysis

Bootstrap for Variables in the Equation


Factors

Odds Ratio

95% CI

P-value

Odds Ratio

95% CI

P-value

Std. Error

95% CI

P-value


Age (years)


36-60 (a)

2.646 (c v.s. a)

(1.232, 5.650)

0.002

3.937 (c v.s. a)

(1.403, 11.111)

0.003

0.892

(0.945, 12.195)

0.013


61-85 (b)

1.342 (c.v.s. b)

(0.579, 3.115)

1.548 (c v.s. b)

(0.492, 4.878)

0.924

(0.370, 5.348)


20-35 (c)


Ultrasound


M

3.584

(2.088, 6.173)

<0.0001

1.977

(1.545, 4.367)

<0.0001

0.471

(1.023, 4.993)

0.111


N, B, I, S


Mammography


BR5

3.717

(1.898, 7.299)

0.0001

3.058

(1.049, 8.929)

0.048

1.315

(1.121, 1.530)

0.028


BR1-4


Diagnostic method


Others

2.331

(1.422, 3.846)

0.001

2.519

(1.172, 5.410)

0.028

0.427

(1.119, 6.303)

0.016


Core biopsy


Tumor grade


III

2.172

(1.486, 3.176)

<0.0001

1.671

(1.215, 2.829)

0.01

0.322

(0.966, 3.347)

0.075


II


I


Lymph node


N3

4.053

(2.850, 5.755)

<0.0001

3.037

(1.808, 5.104)

<0.0001

0.335

(1.624, 6.221)

0.001


N1 or N2


N0


ER/PR


(-, -), (-, +), (+, -)

1.99

(1.194, 3.331)

0.009

2.778

(1.231, 6.260)

0.045

0.451

(1.306, 7.996)

0.011


(+, +)


Chemotherapy


Yes (a)

2.558 (c v.s. a)

(1.263, 5.155)

<0.0001

4.348

(1.631, 11.494)

0.002

0.852

(1.339, 13.514)

0.003


No (b)

16.393 (c v.s. b)

(5.051, 52.632)

12.658

(2.558, 62.5)

3.761

(18.868, 2.87*109)


Abandonment or Refusal (c)


Chang and Kuo BMC Medical Informatics and Decision Making 2010 10:43   doi:10.1186/1472-6947-10-43

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