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Table 1 Data abstracted from MESCC RCT PFS and OS analyses

From: A technique for approximating transition rates from published survival analyses

 

Description

RT-alone arm

mS+RT arm

PFS analysis

\(N_{pfs}^e\)

Total number of PFS events

17

31

\(N_{pfs}^c\)

Total number of patients censored from PFS analysis

5

6

\(\sum \limits _{i=1}^{N_{pfs}^e}p_i^e\)

Person-time of PFS observation

7.02 years

27.22 years

\(\tau _{pfs}\)

Maximum observation time in the PFS analysis

2.97 years

5.25 years

\(AUC_{pfs}\)

Area under PFS curve

0.63

1.16

OS analysis

\(N_{os}^e\)

Total number of OS events

44

45

\(N_{os}^c\)

Total number of patients censored from OS analysis

1

3

\(\tau _{os}\)

Maximum observation time in the OS analysis

2.99 years

5.25 years

\(\sum \limits _{i=1}^{N_{os}^e}o_i^e\)

Person-time of OS observation

24.17 years

35.89 years

\(AUC_{os}\)

Area under OS curve

0.62

0.98

Synthesis of PFS and OS analyses

\(N_{simul}\)

Total number of simultaneous events in PFS and OS curves

10

19