KardioApp - a mobile electronic application to improve self-management and increase adherence to therapy in patients with coronary heart disease (CHD)

• Conditions: I25; I50; Chronic ischaemic heart disease; Heart failure

• Registration Number: DRKS00019041
• Lead Sponsor: Deutsche Rentenversicherung Berlin-Brandenburg

Brief Summary

158 rehabilitation patients were included in the study. Their mean age was 57.9 years (± 10.9). Males were 82.2%. The age range was 19 to 80 years. The response rate was 69%. The cardio app was used by 80.7% (n=88) of the respondents. The usability score of the cardio app determined with the System Usability Scale (SUS) was 74.4 (SD ± 17.4). The detailed analyses revealed high agreement values. For 86%, the menu navigation was self-explanatory and logical. The visual presentation pleased 92% of the respondents. The content of the texts used in the app was understandable for 95%, and 93% found the technical terms used in the glossary well explained. For 57%, the app was helpful in planning their physical activities. 83% of the rehabilitation patients would recommend the app to others. The main criticisms of the app were the lack of synchronization options with other apps (e.g., fitness trackers, blood pressure and exercise devices). Of those who did not use the app, the following reasons for non-use were most frequently cited: too much effort (43%), lack of time (29%), and pandemic-related reasons (29%).

Detailed Description

Not available

Study Timeline

• Study Start: 2019-11-12
• Study Completion: 2021-05-31
• Results First Posted: 2023-11-08
• Last Update Posted: 19 August 2024

Recruitment & Eligibility

• Status: Complete
• Sex: All
• Target Recruitment: 158

Inclusion Criteria

Patients with coronary heart disease or heart failure.

Exclusion Criteria

Patients who are cognitively or linguistically severely restricted, seriously ill, or younger than 18 years of age or older than 81 years of age and have insufficient knowledge of the German language.

Study & Design

• Study Type: observational
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Quantitative user survey, acceptance analysis. The survey take place five months after the KardioApp has been used for the first time. Patients were recruited between 12/2019 and 02/2021.

Secondary Outcome Measures

Name	Time	Method
Motivation for improved health behavior