Table 3.

Mean predicted and observed incidence of RP-ILD according to the risk category.

Risk Category	DC (n = 165)			IVC (n = 64)			EVC (n = 97)
	No (%)	Mean predicted incidence of RP-ILD (%)	Observed RP-ILD (%)	No (%)	Mean predicted incidence of RP-ILD (%)	Observed RP-ILD (%)	No (%)	Mean predicted incidence of RP-ILD (%)	Observed RP-ILD (%)
Low	67 (40.61)	8.61	8.96	32 (50)	2.7	3.13	55 (56.70)	0.38	1.82
Medium	82 (49.70)	46.41	45.12	26 (40.63)	42.87	42.31	36 (37.11)	25.07	22.22
High	16 (9.69)	94.84	100	6 (9.37)	99.82	100	6 (6.19)	96.14	100
C-index	0.849			0.928			0.948
(95%CI)	(0.791–0.907)			(0.866–0.990)			(0.862–1.000)

DC, development cohort; IVC, internal validation cohort; EVC, external validation cohort; CI, confidence intervals.