Table 4. Early death rate according to probability tree analysis and algorithm accuracy in both cohorts.

Groups	STBSG		FSG
PS=0	1201	40 (3.3)	165	1 (0.6)
PS=1	1361	129 (9.4)	156	11 (7.1)
PS ⩾2 and non-grade III	195	38 (13.9)	16	2 (12.5)
PS ⩾2 and grade III	110	40 (36.4)	10	1 (10.0)
Area under receiver operator curve	0.86 (0.84–0.87)		0.89 (0.86–0.93)
	STBSG (n=2867)		FSG (n=347)
	Early death	Other	Early death	Other
PS ⩾2	78	227	3	23
PS=(0–1)	169	2393	12	309
Accuracy (%) (95% CI)	86.2 (84.5–87.4)		89.0 (86.5–93.5)

Abbreviations: STBSG=Soft Tissue and Bone Sarcoma Group; FSG=French Sarcoma Group; CI=confidence interval; PS=performance status.