Table 3.

Study 1: Percentages and means (95% confidence intervals [CI]) for dependent variables, by quantitative information conditions.

	Quantitative information
	Absent	Present
N	450	451
	% (CI)	% (CI)	P-value, OR
Gist recall/estimation
Item 1: False: “Vistasin eliminates the vision problems caused by wet AMD.”	38.4 (33.9, 43.0)	47.7 (43.0, 52.3)	0.004, 1.48
Item 2: Agree: “Vision will improve but won’t be back to normal.”	74.9 (70.9, 78.9)	86.5 (83.3, 89.6)	<0.001, 2.20
Verbatim recall/estimation
Item 1: 45%: “On average, if someone with wet AMD takes another prescription drug by what percentage will their blind spots shrink?”	1.3 (0.3, 2.4)	58.5 (54.0, 63.1)	<0.001, 104.90
Item 2: 65%: “On average, if someone with wet AMD takes Vistasin by what percentage will their blind spots shrink?”	3.6 (1.8, 5.3)	65.9 (61.5, 70.3)	<0.001, 53.23
Item 3: Higher than 65%: “On average, if someone with wet AMD takes Vistasin by what percentage will their blind spots shrink?”	17.8 (14.2, 21.3)	5.5 (3.4, 7.7)	<0.001, 0.26
	M (CI)	M (CI)	P-value, f
Perceived efficacy (1 = strongly disagree, 6 = strongly agree)	4.06 (3.96, 4.16)	4.45 (4.35, 4.55)	<0.001, 0.18

Note. OR = odds ratio. Verbatim items 2 and 3 represent two different codes of the same questionnaire item: correct (65%) and overestimated (higher than 65%).