Table 4

Study 2: first run of EFA (maximum likelihood extraction with oblique rotation) with version 2 items (10-point scale)*

Item No	Items	Factor
Item No	Items	1	2
Benefit items
Imp1	(Importance of) sharing your visit notes with others.	0.56	−0.26
Imp2	How important is reading your visit notes for: Taking care of your health?	0.76	−0.09
Imp3	Remembering the plan for your care?	0.7	−0.15
Imp4	Helping you feel in control of your care?	0.78	−0.1
Imp5	Preparing for your office visits?	0.74	−0.2
Imp6	Helping you with your medications?	0.7	−0.26
Imp7	Feeling like you have an active role in your medical care?	0.77	−0.16
Risk items
Risk1	How much did you worry about your health after reading your visit notes?	−0.29	0.54
Risk2	Now that the office visit notes are available online, how concerned are you about privacy?	−0.06	0.37
Risk3	How confusing were the office visit notes?	−0.01	0.76

n=392, includes only patients who answered all items in the analysis; Cronbach’s alpha=0.87 for the benefit component and 0.51 for the risk component.
*Importance item 1–7 (Imp1 to Imp7) response options: 1=not at all important to 10=extremely important. Risk items 1–3 (Risk1 to Risk3) used item-specific anchors for the 1–10 scale (1=not at all worried/concerned/confusing to 10=extremely worried/concerned/confusing) and were reverse coded.
EFA, exploratory factor analysis.