In the stratified sample (nλ=λ148), the three groups did not differ significantly on demographics or clinical and research characteristics, recruitment venue, or stated willingness to participate in genetic research (data available upon request). We examined within ethnic group associations among sex, marital status, clinical/research characteristics, and willingness to participate, and found that among Whites, significantly more females (89%) agreed to participate than males (59%, χ2(2)λ=λ5.55, P<0.05). Among Hispanics, all of those who had volunteered in the past for health research were willing to participate, compared with 71% of those who did not (χ2 (2)λ=λ4.51, P<0.05).
