Testing threat-to-efficacy ratios in health communications about cardiovascular disease among an older population.

To test threat-to-efficacy ratios within health communications about cardiovascular disease (CVD) for older individuals. Participants were randomly assigned to one of six messages: (i) 'standard' message with 1/1 threat-to-efficacy ratio, (ii) 'low efficacy' message with 1/0 threat-to-efficacy ratio, (iii) 'low threat' message with 0/1 threat-to-efficacy ratio, (iv) 'high efficacy' message with 1/2 threat-to-efficacy ratio; (v) 'high threat' message with 2/1 threat-to-efficacy ratio and (vi) 'overload' message with 2/2 threat-to-efficacy ratio. Participants had to be of 60 years of age or older (N = 242, Male = 92, Age: M = 68.29, SD = 6.71). Advanced univariate analyses and multiple regression modelling were conducted to examine associations between the message groups, and danger- and fear-control processes, as well as the impact of threat and efficacy appraisals on the relationship between the message groups and behavioural intentions. No differences were found between the message groups for danger-control processes. Those who received the 'overload' message did report higher levels of fear, nervousness and anxiety in comparison to the 'standard' message group. For physical activity, it was found that efficacy impacted the relationship between the message groups and behavioural intentions, as participants' levels of efficacy increased and if these individuals received high levels of efficacy information, their behavioural intentions for physical activity increased. Results from this study were dissimilar to those of previous research. However, they highlighted the impact of efficacy and negative emotional reactions when communicating to older individuals about CVD and the associated health behaviours.