Development of a healthy ageing index in Latin American countries - a 10/66 dementia research group population-based study

Table 4 Fit statistics for confirmatory factor analysis models

Model	Chi-square	df	CFI	RMSEA	90%CI	Difftest (chi-square, df)
One factor	14,497.44	299	0.902	0.073	0.072–0.074	(5679.77, 26)^***
Second-order	5770.29	295	0.962	0.045	0.044–0.046	(1089.78, 22)^***
Bifactor	4327.95	273	0.972	0.041	0.040–0.042	–

Difftest: an adjusted chi-square difference test; df: degrees of freedom; RMSEA Root Mean Square Error of Approximation, CFI Comparative Fit Index
^*** p < 0.001

ISSN: 1471-2288