. 2014 Feb 4;9(2):e87958. doi: 10.1371/journal.pone.0087958

Table 5. Comparisons of predictability for mortality by frailty status from each frailty index.

	C-index	p-value^†	95% CI
KLoSHA index^*	0.713		0.656–0.770
CHS index	0.596		0.549–0.642
SOF index	0.542		0.485–0.598
KLoSHA index vs. CHS index		<0.001
KLoSHA index vs. SOF index		<0.001

Bootstrapped 1000 times.

†p-value for C-index difference.

Abbreviations: 95% CI-95% confidence interval, KLoSHA-Korean Longitudinal Study on Health and Aging, CHS-Cardiovascular Health Study, SOF-Study of Osteoporotic Fracture.