Table 1.

Median OS and probability for 1 year OS according to the risk score groups

	Training set
	Median OS, month (95% CI)	1 Year OS, % (95% CI)
Score 0–1	14.83 (14.1 to 16.10)	62.8 (58.4 to 67.6)
Score 2–3	11.93 (10.6 to 13.40)	48.7 (42.6 to 55.6)
Score 4–5	7.9 (6.6 to 9.23)	26.5 (19.1 to 36.7)
Score 6–9	3.27 (2.5 to 4.2)	12.9 (6.9 to 23.9)

	Validation set
	Median OS, month (95% CI)	1 Year OS, % (95% CI)
Score 0–1	17.13 (14.93–20.53)	68.79 (62.5 to 75.5)
Score 2–3	12.87 (11.40–14.63)	53.0 (45.0 to 62.5)
Score 4–5	8.13 (5.27–12.30)	37 (27.3 to 50.4)
Score 6–9	3.87 (1.53–8.23)	NA (NA-NA)

OS, overall survival