Role of patients' view of their illness in predicting return to work and functioning after myocardial infarction: longitudinal study.

OBJECTIVE--To examine whether patients'' initial perceptions of their myocardial infarction predict subsequent attendance at a cardiac rehabilitation course, return to work, disability, and sexual dysfunction. DESIGN--Patients'' perceptions of their illness were measured at admission with their first myocardial infarction and at follow up three and six months later. SETTING--Two large teaching hospitals in Auckland, New Zealand. SUBJECTS--143 consecutive patients aged under 65 with their first myocardial infarction. MAIN OUTCOME MEASURES--Attendance at rehabilitation course; time before returning to work; measures of disability with sickness impact profile questionnaire for sleep and rest, social interaction, recreational activity, and home management; and sexual dysfunction. RESULTS--Attendance at the rehabilitation course was significantly related to a stronger belief during admission that the illness could be cured or controlled (t = 2.08, P = 0.04). Return to work within six weeks was significantly predicted by the perception that the illness would last a short time (t = 2.52, P = 0.01) and have less grave consequences for the patient (t = 2.87, P = 0.005). Patients'' belief that their heart disease would have serious consequences was significantly related to later disability in work around the house, recreational activities, and social interaction. A strong illness identity was significantly related to greater sexual dysfunction at both three and six months. CONCLUSIONS--Patients'' initial perceptions of illness are important determinants of different aspects of recovery after myocardial infarction. Specific illness perceptions need to be identified at an early stage as a basis for optimising outcomes from rehabilitation programmes.