An EWAS of dementia biomarkers and their associations with age, African ancestry, and PTSD

Clinical Epigenetics

Table 3 Model fit of the exploratory and confirmatory factor analyses

	Model	χ²	df	p	RMSEA	SRMR	CFI	TLI	BIC
EFAs	1 Factor (1st half sample)	51.87	5	< 0.001	0.15	0.07	0.85	0.70	13,120
EFAs	2 Factor (1st half sample)	0.004	1	0.948	< 0.001	< 0.001	1.00	1.00	13,085
CFAs	2 Factor (2nd half sample)	4.36	4	0.359	0.015	0.018	0.999	0.997	12,884
CFAs	2 Factor (full sample)	5.41	4	0.248	0.020	0.014	0.998	0.994	25,897

n = 849
EFA exploratory factor analysis; CFA confirmatory factor analysis; RMSEA root mean square error of approximation; SRMR standardized root mean square residual; BIC Bayesian information criterion; CFI comparative fit index; TLI Tucker-Lewis Index

ISSN: 1868-7083