Table 2:

Model validation

	Internal		External
	R2, % (SD)	C-statistic (SD)	R2, % (SD)	C-statistic (SD)
Unfavorable outcome
TBV model	52 (0.6)	0.88 (0.01)	56 (1.8)	0.89 (0.01)
mFisher model	43 (0.9)	0.84 (0.01)	45 (3)	0.85 (0.01)
Location-specific model	50 (0.8)	0.88 (0.01)	56 (1)	0.89 (0.00)
Death
TBV model	48 (0.8)	0.87 (0.01)	50 (1.2)	0.89 (0.00)
mFisher model	42 (1.4)	0.85 (0.01)	42 (2.6)	0.85 (0.01)
Location-specific mode	47 (1.0)	0.87 (0.01)	49 (1.3)	0.88 (0.01)

Note:–mFisher indicates modified Fisher scale.