Table 2.

Percentage of Subjects Correctly Comparing and Calculating Treatment Benefits, According to Their Baseline Characteristics (N = 357)

Characteristic	N	% Correct Comparison*	P Value	% Correct Calculation*	P Value
Sex
Male	126	54	.004	24	<.001
Female	229	38		7
Race
White	245	54	<.001	18	<.001
Nonwhite	110	20		1
Education
Some college	203	56	<.001	21	<.001
No college		41		2
Health status
Fair/poor	180	36	.002	4	<.001
Good/excellent	175	52		22
Discussion of medical decision with an MD
Yes	223	51	<.001	17	.001
No	134	31		5
Information presentation by a doctor
Some quantitative	41	76	<.001	37	<.001
Qualitative	216	44		13
Consider themselves good with numbers
Yes	234	50	.002	17	<.001
No	99	31		3
Statistical training
Some	68	66	<.001	35	<.001
None	280	39		7

^*% and P values based on χ² tests or Fischer's exact test when group numbers <5.