Patient Participation in Surgical Treatment Decision Making from the Patients' Perspective: Validation of an Instrument

Table 4

Initial eigenvalues, percent of variance and cumulative percent, and the total variance for 20 items and 4 factors.

Factors	Initial eigenvalues
	Total	% of variance	Cumulative %
(1) Information dissemination	6.300	31.502	31.502
(2) Formulation of options	2.008	10.041	41.543
(3) Integration of information	1.262	6.311	47.854
(4) Control	1.171	5.855	53.709