Data-driven subtypes of major depressive disorder: a systematic review

Table 1 Confirmatory factor analyses.

Author	Number of factors	Items in analysis	Explained variance	TLI	CFI	RMSEA	Factor correlation
Uher [12]	1	MADRS	0.57	0.99	0.97	0.10	NA
	1	HRSD-17	0.36	0.93	0.87	0.09	NA
	1	HRSD-6*	0.48	0.99	0.98	0.07	NA
	1	BDI	0.48	0.97	0.88	0.10	NA
	1	All 48 items	0.45	0.90	0.63	0.17	NA
Lux [35]	1	9 MDD symptoms	-	0.97	0.96	0.07	NA
	2	9 MDD symptoms	-	0.97	0.97	0.06	0.83

Abbreviations: BDI, Beck Depression Inventory; CFI, Confirmatory Fit Index; HRSD, Hamilton Rating Scale for Depression; MADRS, Montgomery and Åsberg Depression Rating Scale; MDD, major depressive disorder; NA, not applicable; * HRSD-6 contains 6 items out of the HRSD-17 (items 1,2,7,8,10,13) corresponding to depressive symptoms 1,2,5b,6,7; - not recorded.

ISSN: 1741-7015