Examining the boundaries of tailoring: the utility of tailoring versus targeting mammography interventions for two distinct populations

Health messages can be generic, targeted to population subsets or tailored for individual recipients. There has been little examination of which popul ations need tailored interventions or whether tailored and targeted interve ntions differ in important ways. We used data from a mammography interventi on study in two distinct populations to simulate a comparison of individual ly tailored versus targeted interventions. Tailored intervention content wa s based on individual recipients' interview responses. Targeted interventio n content was based on composite group responses. For more than 60% in each population group, about two-thirds of tailored message content was a good match with content of the targeted intervention generated by composite grou p responses; roughly one-third of the content was 'not a good' fit for thei r intervention needs. Tailored interventions for more than 80% of subjects in each population differed in at least some way from those generated for a ll other population group members. This simulation is a first step in quant ifying the contribution of individual tailoring over group targeting. Futur e research should examine whether a targeted intervention that is mostly a 'good' match results in behavioral outcomes similar to those of individuall y tailored interventions and whether particular differences in tailored ver sus targeted interventions yield significantly more favorable intervention outcomes.