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Table 3 Two-year and five-year survival by TNM classification (reference) vs index classification (N = 71,593)

From: Stratifying non-small cell lung cancer patients using an inverse of the treatment decision rules: validation using electronic health records with application to an administrative database

TNM classification (reference)

Application of the index classification

TNM Stage (7th ed.)

2-year survival†

5-year survival†

Classes in the proposed classification

N

Predicted 2-year survival (95% CI)

Predicted 5-year survival (95% CI)

IA

0.93

0.82

1

17,543

0.87 (0.86, 0.87)

0.79 (0.78, 0.79)

IB

0.85

0.66

IIA

0.74

0.52

IIB

0.64

0.47

2

6633

0.79 (0.78, 0.80)

0.54 (0.53, 0.55)

IIIA

0.55

0.36

3

1021

0.69 (0.66, 0.72)

0.35 (0.32, 0.38)

4

999

0.64 (0.61, 0.67)

0.30 (0.27, 0.33)

5

448

0.70 (0.65, 0.74)

0.47 (0.42, 0.51)

IIIB

0.34

0.19

6

21,378

0.26 (0.25, 0.26)

0.07 (0.06, 0.07)

IV

0.17

0.06

7

23,571

0.15 (0.15, 0.16)

0.04 (0.04, 0.04)

  1. †Reference 2-year and 5-year survival probabilities are based on the IASLC Lung Cancer Staging Project (2016)