The aim of this pilot study was to explore and compare preferences for involvement and preferences for information among men and women who had suffered from cardiac disease. A convenience sample of 79 respondents (47 men and 32 women) was recruited from The National Association of Heart and Lung Patients in Sweden at ten local meeting places in different areas. Krantz Health Opinion Survey, KHOS, a 16-item self-rating questionnaire, was used to measure patients’ desire for involvement in healthcare. The results indicate that patients’ information preferences and behavioural preferences are not very high though the total score in KHOS was 5.47. A difference between the genders was also found, seen as higher scores in females than males; 5.93 vs 4.44, p = 0.032, indicating that women prefer a more active role in decision making than men do. The main practical conclusion drawn from this empirical study is that patients are still not as active in seeking information or in behavioural involvement as is desirable.