Females ( odds ratio [ OR ] = 1.46 ; 95 % confidence interval [ CI ] : 1.15-1 .86 ) , college graduates ( OR = 1.61 ; 95 % CI : 1.24-2 .08 ) and those who considered the quality of their healthcare to be poor ( OR = 2.16 ; 95 % CI : 1.28-3 .65 ) were more likely to use CAM , whereas blacks ( OR = 0.58 ; 95 % CI : 0.39-0 .85 ) were less likely to use CAM .