Linking Illness in Parents to Health Anxiety in Offspring: Do Beliefs about Health Play a Role?

BACKGROUND The cognitive behavioural (CB) model of health anxiety proposes parental illness leads to elevated health anxiety in offspring by promoting the acquisition of specific health beliefs (e.g. overestimation of the likelihood of illness). AIMS Our study tested this central tenet of the CB model. METHOD Participants were 444 emerging adults (18-25-years-old) who completed online measures and were categorized into those with healthy parents (n = 328) or seriously ill parents (n = 116). RESULTS Small (d = .21), but significant, elevations in health anxiety, and small to medium (d = .40) elevations in beliefs about the likelihood of illness were found among those with ill vs. healthy parents. Mediation analyses indicated the relationship between parental illness and health anxiety was mediated by beliefs regarding the likelihood of future illness. CONCLUSIONS Our study incrementally advances knowledge by testing and supporting a central proposition of the CB model. The findings add further specificity to the CB model by highlighting the importance of a specific health belief as a central contributor to health anxiety among offspring with a history of serious parental illness.