Table 1.
Data collection methods used in this study coupled with the variables that were collected through these methods and the number of participants for whom a variable is known.
| Method, collected data | Variables (n) | Clustering | |
| Electronic patient record | |||
|
|
Demographic | Gender (25), age (25) | Step 1 and 2 and 3 |
|
|
Medical | Cerebrovascular incident or transient ischemic attack comorbidity (25), chronic obstructive pulmonary disease comorbidity (25), diabetes comorbidity (25), left ventricular ejection fraction (25), heart failure with reduced ejection fraction (left ventricular ejection fraction <40%) (25), ischemic heart disease (25), hypertension (25), atrial fibrillation (25), New York Heart Association 2 or New York Heart Association 3 (25), heart failure hospitalization (25), cardiac resynchronization therapy defibrillator (25), estimated glomerular filtration rate (25), implantable cardioverter defibrillator (25) | Step 1 and 2 and 3 |
| Interviews | |||
|
|
Technical | Smartphone ownership (23), personal computer ownership (22), tablet ownership (23), use of technology for entertainment (13), use of technology for social purposes (14), use of technology for gaining information (14) | Step 2 and 3 |
|
|
Demographic | Education type (7), children (13), grandchildren (5), divorce (13), marital status (16), employment (22) | Step 2 and 3 |
|
|
Health care specifics | Positive coping (25), negative coping (25), health-related goals (25), years ago diagnosed with heart failure (24) | Step 2 and 3 |
| eHealth Literacy Scale questionnaire | |||
|
|
Capacity for engaging in eHealth | eHealth literacy (22) | Step 2 and 3 |
| 5-level 5-dimension Euro quality of life questionnaire | |||
|
|
Quality of life | Quality of life before using the telemonitoring technology (25) | Step 2 and 3 |
|
|
|
Quality of life after using the telemonitoring technology (25) | Step 3 |
| Log data of the pilot study | |||
|
|
Usage log data | Start new measurement (25), send symptoms measurement (25), send physical measurements (25), open history of measurements (25), contact care provider (25), open profile page (25), open user manual (25) | Step 3 |
|
|
Appointed symptoms | Restless, forgetful, and had a lacking concentration (25), a reduced effort level (25), a reduced appetite (25), a more than normal increase in fatigue (25), increased shortness of breath (25), cough or tickling cough (25), moisture in legs and abdominal distension (25), increased palpitations, fast paced heartbeat and chest pain (25) | Step 3 |
|
|
Generated alarms | Alarm for systolic blood pressure (24), alarms for diastolic blood pressure (24), alarms for heart rate (24), alarms for weight (24) | Step 3 |