Table 4 Pairwise hazard ratio for disease-specific survival stratified by Clinical Prognostic Stage and Prognostic Score Category in the two cohorts.

From: A simplified breast cancer prognostic score: comparison with the AJCC clinical prognostic staging system

SEER

UAB

Clinical Prognostic Stage

Prognostic Score Category

Clinical Prognostic Stage

Prognostic Score Category

Stage

HR (95% CI)

P

Category

HR (95% CI)

P

Stage

HR (95% CI)

P

Category

HR (95% CI)

P

IB vs. IA

2.12 (1.82, 2.48)

<2 × 10−16

II vs. I

2.78 (2.44, 3.18)

<2 × 10−16

IB vs. IA

4.44 (2.50, 7.89)

3.62 × 10−7

II vs. I

3.66 (2.23, 5.99)

2.61 × 10−7

IIA vs. IB

1.49 (1.28, 1.72)

1.41 × 10−7

III vs. II

2 (1.80, 2.22)

<2 × 10−16

IIA vs. IB

1.43 (0.92, 2.22)

0.112

III vs. II

2.5 (1.75, 3.57)

5.19 × 10−7

IIB vs. IIA

1.89 (1.65, 2.17)

<2 × 10−16

IV vs. III

2.34 (2.14, 2.57)

<2 × 10−16

IIB vs. IIA

2.37 (1.57, 3.57)

3.65 × 10−5

IV vs. III

2.04 (1.49, 2.80)

9.82 × 10−6

IIIA vs. IIB

1.35 (1.15, 1.58)

0.000173

V vs. IV

2 (1.83, 2.19)

<2 × 10−16

IIIA vs. IIB

1.63 (1.05, 2.53)

0.0305

V vs. IV

2.84 (2.01, 4.00)

2.63 × 10−9

IIIB vs. IIIA

1.63 (1.42, 1.87)

3.67 × 10−16

VI vs. V

1.94 (1.77, 2.13)

<2 × 10−16

IIIB vs. IIIA

1.27 (0.83, 1.96)

0.281

VI vs. V

2.92 (1.79, 4.75)

1.72 × 10−5

IIIC vs. IIIB

2.39 (2.15, 2.66)

<2 × 10−16

VII vs. VI

1.37 (1.21, 1.55)

4.3 × 10−7

IIIC vs. IIIB

2.67 (1.77, 4.04)

3.00 × 10−6

VII vs. VI

3.29 (1.59, 6.84)

0.00137

IV vs. IIIC

1.49 (1.35, 1.64)

4.36 × 10−16

VIII vs. VII

1.93 (1.64, 2.27)

2.61 × 10−15

IV vs. IIIC

1.58 (1.03, 2.40)

0.0344

VIII vs. VII

NA

NA

  1. HR hazard ratio, CI confidence interval, NA not applicable.