Table 2 Open in new tab Combinations of...

Combinations of variables used for DDF classification and grading grouped by different interpretations of the EACVI/ASE 2009 classification algorithm in studies in which the algorithm interpretation was specified (n = 47)

Classification and grading of DDF by a one-level classification tree (n = 13)Supplementary Data	Classification and grading of DDF by a two-level classification tree (n = 18)Supplementary Data	Classification of DDF only, no grading (n = 16)Supplementary Data
For the definition of DDF and grading:	For the definition of DDF:	For the definition of DDF:
E/A, E/E′, and DT (n = 4)Supplementary Data	E′ (n = 8)Supplementary Data	E/E′ (n = 6)Supplementary Data
E/A and PV (n = 3)Supplementary Data	E′ and LA size (n = 6)Supplementary Data	LA size and E/E′ (n = 3)Supplementary Data
E/A, E/E′, VSr, DT, and IVRT (n = 1)Supplementary Data	E/E′ (n = 2)Supplementary Data	DT and IVRT (n = 1)Supplementary Data
E/A, PV, E/E′, and DT (n = 1)Supplementary Data	E′, LA size, and E/E′ (n = 1)Supplementary Data	E′ (n = 1)Supplementary Data
E/A, PV, DT, and IVRT (n = 1)Supplementary Data	E′, E/A, and DT (n = 1)Supplementary Data	E′, E/E′, and E/A (n = 1)Supplementary Data
E/A, PV, DT, IVRT, and E′/A′ (n = 1)Supplementary Data		LA size (n = 1)Supplementary Data
E/A, VSr, and DT (n = 1)Supplementary Data	For the subsequent grading of DDF:	LA size, E/E′, and E/A (n = 1)Supplementary Data
E′, LA size, E/A, and E/E′ (n = 1)Supplementary Data	E/A and DT (n = 5)Supplementary Data	E/E′, E/A, and DT (n = 1)Supplementary Data
	E/A, E/E′, and DT (n = 4)Supplementary Data	E′ and LA size (n = 1)Supplementary Data
	DT (n = 2)Supplementary Data
	E/A (n = 2)Supplementary Data
	E/A, E/E′, DT, and IVRT (n = 1)Supplementary Data
	E′, E/A, E/E′, and DT (n = 1)Supplementary Data
	E′, LA size, E/A, and E/E′ (n = 1)Supplementary Data
	Variables used not specified (n = 2)Supplementary Data

Classification and grading of DDF by a one-level classification tree (n = 13)Supplementary Data	Classification and grading of DDF by a two-level classification tree (n = 18)Supplementary Data	Classification of DDF only, no grading (n = 16)Supplementary Data
For the definition of DDF and grading:	For the definition of DDF:	For the definition of DDF:
E/A, E/E′, and DT (n = 4)Supplementary Data	E′ (n = 8)Supplementary Data	E/E′ (n = 6)Supplementary Data
E/A and PV (n = 3)Supplementary Data	E′ and LA size (n = 6)Supplementary Data	LA size and E/E′ (n = 3)Supplementary Data
E/A, E/E′, VSr, DT, and IVRT (n = 1)Supplementary Data	E/E′ (n = 2)Supplementary Data	DT and IVRT (n = 1)Supplementary Data
E/A, PV, E/E′, and DT (n = 1)Supplementary Data	E′, LA size, and E/E′ (n = 1)Supplementary Data	E′ (n = 1)Supplementary Data
E/A, PV, DT, and IVRT (n = 1)Supplementary Data	E′, E/A, and DT (n = 1)Supplementary Data	E′, E/E′, and E/A (n = 1)Supplementary Data
E/A, PV, DT, IVRT, and E′/A′ (n = 1)Supplementary Data		LA size (n = 1)Supplementary Data
E/A, VSr, and DT (n = 1)Supplementary Data	For the subsequent grading of DDF:	LA size, E/E′, and E/A (n = 1)Supplementary Data
E′, LA size, E/A, and E/E′ (n = 1)Supplementary Data	E/A and DT (n = 5)Supplementary Data	E/E′, E/A, and DT (n = 1)Supplementary Data
	E/A, E/E′, and DT (n = 4)Supplementary Data	E′ and LA size (n = 1)Supplementary Data
	DT (n = 2)Supplementary Data
	E/A (n = 2)Supplementary Data
	E/A, E/E′, DT, and IVRT (n = 1)Supplementary Data
	E′, E/A, E/E′, and DT (n = 1)Supplementary Data
	E′, LA size, E/A, and E/E′ (n = 1)Supplementary Data
	Variables used not specified (n = 2)Supplementary Data

S1–S60 denotes references available in Supplementary material online.

DDF, diastolic dysfunction; E′, septal, lateral, average, or unspecified early myocardial tissue velocity; E, early transmitral flow velocity; A, late/atrial transmitral flow velocity; LA size, left atrial volume, diameter, or area; DT, deceleration time; IVRT, isovolumetric relaxation time; VSr, Valsalva reversal of E/A; PV, pulmonary venous flow indices.

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