. Author manuscript; available in PMC: 2022 Jun 27.

Published in final edited form as: Mod Pathol. 2021 Feb 26;34(6):1104–1115. doi: 10.1038/s41379-021-00735-8

Table-4.

Concordance statistics (c-index) of various risk scores for OS

Risk Factor	C-index (SE)	Difference (SE)	P
PPB type	0.717 (± 0.038)

p53 group	0.669 (± 0.047)	−0.048 (± 0.054)	0.374
Stratified by type	0.543 (± 0.054)
Type I	0.200 (± 0.063)
Type II	0.559 (± 0.085)
Type III	0.542 (± 0.070)

p53 percent	0.680 (± 0.046)	−0.037 (± 0.051)	0.475
Stratified by type	0.540 (± 0.056)
Type I	0.200 (± 0.063)
Type II	0.571 (± 0.086)
Type III	0.529 (± 0.074)

Abbreviations: OS – overall survival; SE – standard error; PPB – pleuropulmonary blastoma.