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Table 1 Summary of all outcome measures and method of analysis

From: Motivational interviewing to promote healthy behaviors for obesity prevention in young adults (MOTIVATE): a pilot randomized controlled trial protocol

Outcome measure

Variable type

Measurement

Method of analysis

Primary feasibility outcomes

 Recruitment rate

Binary

% of eligible participants who are recruited from all those who contact the research team to learn about the study

Feasibility threshold of ≥ 50%

 Retention rate

Binary

% of participants who complete 6-month follow-up

Feasibility threshold of ≥ 80%

 Data completion

Binary

% of secondary outcomes with no missing data

Feasibility threshold of ≥ 80%

 Satisfaction

Continuous

Mean score on a 7-point Likert scale

Mean satisfaction score ≥ 4

Secondary outcomes

 BMI change

Continuous

Change in BMI from baseline to 6-month follow-up, weight measures using wifi enabled smart scales

Mean, SD

 Physical activity

Binary

International Physical Activity Questionnaire (IPAQ)

Mean, SD

 

Continuous

Minutes per day from activity trackers

Mean, SD

 Sedentary time

Binary

International Sedentary Assessment Tool (ISAT)

Mean, SD

 Nutrition

Continuous

National Cancer Institute’s Dietary Screener Questionnaire (DSQ)

Mean, SD

 Mental health

Binary

Depressive symptoms (CESD-10) score > 10, Anxiety (GAD-7) score > 10

N, %

 Health-related quality of life

Continuous

Quality of Life (EQ-5D-5L)

Median, IQR