Table 4.

Performance estimates as concordance index (C‐index) and 95% confidence intervals of all seven models predicting OS and PFS

		M1	M2	M3	M4	M5	M6	M7
OS	Training set	0.74 (0.67‐0.81)	0.64 (0.58‐0.71)	0.93 (0.87‐1.00)	0.93 (0.86‐1.00)	0.75 (0.68‐0.82)	0.94 (0.88‐1.00)	0.96 (0.89‐1.00)
	Test set	0.59 (0.48‐0.70)	0.49 (0.37‐0.60)	0.61 (0.51‐0.72)	0.54 (0.44‐0.65)	0.64 (0.53‐0.75)	0.70 (0.59‐0.81)	0.73 (0.62‐0.84)
PFS	Training set	0.68 (0.62‐0.75)	0.63 (0.56‐0.69)	0.73 (0.66‐0.79)	0.80 (0.73‐0.87)	0.70 (0.63‐0.77)	0.81 (0.74‐0.88)	0.79 (0.72‐0.85)
	Test set	0.56 (0.45‐0.66)	0.50 (0.40‐0.61)	0.61 (0.50‐0.71)	0.45 (0.35‐0.56)	0.61 (0.51‐0.71)	0.68 (0.57‐0.78)	0.71 (0.60‐0.81)