Table A4.

Discriminative ability (at the optimal cut-point) of CPH-I in validation studies.

Author (Year)	Country	Cutoff	Sensitivity	Specificity	C-Index (95% CI)
Karlsen et al. (2015) [24]	6 European and 6 Asian countries	0.07	0.82	0.84	0.93 (n/a)
Yoshida et al. (2016) [25]	Brazil	0.07	0.73	0.84	0.84 (0.79–0.88)
Minar et al. (2018) [27]	Czech Republic	0.07	0.69	0.85	0.83 (0.78–0.88)
Tran et al. (2021) [26]	Vietnam	0.02	0.87	0.79	0.9 (0.87–0.92)
Carreras-Dieguez et al. (2022) [17]	Spain	0.01	0.97	0.48	0.94 (0.91–0.96)
		0.03	0.91	0.79
		0.05	0.87	0.88
		0.07	0.82	0.91
Watrowski et al. (present study)	Austria, Belgium, Germany	-0.72	0.83	0.90	0.92 (0.95–0.98)