Feasibility and effects of an eHealth intervention to support patients with a low socioeconomic position during their waiting period preceding cardiac rehabilitation 125 6 In addition, it helped them to feel generally better informed about their current condition by providing additional knowledge they usually would not receive. As one participant expressed: “I received a lot of information that I wouldn’t normally get. If you haven’t had a heart attack, you don’t even think about all the information you’ve received. So, for me, it was a kind of recognition. And it was very good. So, as I said, it made me wise.” [Male, 63] Finally, the participants highlighted the intervention helped to reduce uncertainties by providing guidance during the waiting period gap. As expressed by one participant: “Well, in terms of reducing uncertainties, the app did help me because if you didn’t have that app, you would fall into a void between being discharged from the hospital and starting rehabilitation. So, in that sense, the app was able to provide assistance in filling that void at some point.” [Male, 74] 6.3.5 Factors associated with the effect on certainty and guidance The length of the waiting period had a significant negative correlation with the change in CGQ score in the control group (ρ = −0.51, p = 0.02) but not in the intervention group (ρ = −0.04, p = 0.86). In addition, higher CGQ scores at T1 were negatively correlated with changes in CGQ scores in both the intervention group (ρ = −0.56, p = 0.01) and the control group (ρ = −0.49, p = 0.03). Age and education were not significantly correlated with changes in CGQ scores in both intervention (p = 0.16 and p = 0.26, respectively) and control (p= 0.94, p = 0.66, respectively) group. 6.3.6 Effects on dropout during CR Two (10%) of the participants dropped out of the subsequent CR program in the control group compared to none in the intervention group. This difference was, however, not significant (p = 0.23). 6.4 Discussion 6.4.1 Principal findings In this study, we evaluated the feasibility and explored the effects on feelings of certainty and guidance and on dropouts of a newly developed eHealth intervention for CR patients
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