Here is the design of a clinical trial:

Official Title: "Make my Day"- Incorporating Healthy Activity Patterns: A Person-centered, Digital Prevention Program to Support Health Among Persons at Risk for Stroke

Included conditions:
- Non-Communicable Diseases
- Stroke
- Cardiovascular Risk Factor

Study Armgroups:
- {'label': 'Prevention treatment group', 'type': 'EXPERIMENTAL', 'description': 'Prevention program with 10 week blended intervention utilizing both a digital health app, group-sessions with peers and a interprofessional team of health-care workers chairing 5+1 themed group-sessions as support to change lifestyle habits in to a pattern of activities (behaviors and actions) in everyday life that can promote health and wellbeing and decrease risk for stroke. Lifestyle analysis and stroke risk screening before, at follow up and 12 months after the prevention program.', 'interventionNames': ['Behavioral: Prevention program for stroke']}
- {'label': 'Standard treatment group', 'type': 'NO_INTERVENTION', 'description': 'Usal care in Swedish primary health care. In addition a Lifestyle analysis and stroke risk screening before, at follow up and 12 months after the prevention program.'}

Interventions:
- {'type': 'BEHAVIORAL', 'name': 'Prevention program for stroke', 'description': 'The prevention program include individual and group intervention sessions supported by a digital platform. The program will be personally tailored in relation to what the person needs and what to change and the individuals rediness for change. The digital platform will support the person during and in between sessions by prompting goals and goal-fulfilment, logging activities, step counts and provide a forum for sharing and reflection.', 'armGroupLabels': ['Prevention treatment group']}

Primary Outcomes:
- {'measure': 'Stroke risk score card', 'description': "Through the stroke risk score card estimate change in risk for Stroke and how high this risk are.\n\nThree colums with different colours. Red, yellow and green. Red is High risk, Yellow is Caution, and Green is Low risk. In total there is 8 points per column.\n\nHigh risk: \\>3 red points: Ask about stroke prevention right away. Caution: 4-6: A good start. Work on reducing risk. Low risk: 6-8: You're doing very well at controlling stroke risk.", 'timeFrame': 'Baseline, within a month after the intervention, 1 year follow-up after baseline.'}
- {'measure': 'Healthy Activity patterns (PPR profile)', 'description': 'PPRP (Daily Experiences of Pleasure, Productivity, and Restoration Profile) is a activity-diary where change is meant to be measured regarding activity patterns in everyday life. Experiences are scored as 1-7 in four domains (Pleasure, Productivity, Restoration and Health promotion). For example the domain of health promotion is scored as 1 (very unhealthy) to 7 (very healthy) in regards to different engagements in everyday life. The higher the value the better.', 'timeFrame': 'Baseline, within a month after the intervention, 1 year follow-up after baseline.'}
- {'measure': 'Questions of Lifestyle habits', 'description': 'Measuring change in lifestyle habits with a self-percieved questionnaire with open questions and estimations of different lifestyle habits in everyday life regarding dietary, smoking, alcohol, physical activity habits.\n\nParticipants selects an option on each question or writes an estimated number or answer on what and how they usually do regarding each lifestyle habit.\n\nFor example if they are or have been smoking and how much.\n\nExample of answers options:\n\n1. I have never smoked\n2. I have smoked but I have stoped\n3. I smoke, but not daily\n4. I smoke daily.....X cigarettes a day. Where answer 4. is worse than answer 1.\n\nAnd on alcohol consumption. Question: How many standard glases do you drink a normal week? Answer with a self-percieved number, no fixed response options.', 'timeFrame': 'Baseline, within a month after the intervention, 1 year follow-up after baseline.'}
- {'measure': 'Canadian Occupational Performance Measurement (COPM)', 'description': 'COPM is a client-centered, semi-structured interview assessment that enables the person to identify and prioritize areas of improvement in everyday life. To support goal-setting, defined areas is scored between 0-10 guiding prioritizations of areas of which is scored in regards to performance and satisfaction, also scored between 0-10. Where a higher value is better experience of performance and satisfaction of occupations. Mean change will be measured.', 'timeFrame': 'Baseline, within a month after the intervention, 1 year follow-up after baseline.'}

Please estimate the sample size based on the assumption: 
No statistical power analyses have been calculated. A dropout rate of 20% is expected.
Sample size and power considerations
        This study is an explorative pilot and feasibility study; no statistical power analyses have been calculated. A total sample of 60 participants will be enrolled, of which 30 will be randomised to the intervention group. It is estimated that a total of four PHCs will participate and deliver the intervention (two from rural and urban Stockholm, and two from rural and urban GÃ¤vleborg), each running an intervention group with 8â10 participants. A dropout rate of 20% is expected, resulting in a total of n=26 in the intervention and control groups, respectively.