Table 1 Outcome measure analysis methods
Outcome measure | Analysis method |
|---|---|
Primary outcomes—feasibility and acceptability | |
Recruitment and retention | Descriptive statistics (n, %) |
Usefulness and relevance | Descriptive statistics (n, %), Pearson chi square |
Engagement in social media | Descriptive statistics (n, %), Pearson chi square |
Wearing the GENEActiv | Descriptive statistics (n, %) |
Secondary outcomes—potential efficacy | |
Amount of tummy time and adherence to the 24-h movement guidelines | Descriptive statistics (n, %), linear mixed models (group, time, group × time, sex), Cohen’s d |
Motor development and head shape | Descriptive statistics (n, %), linear mixed models (group, time, group × time, sex), Cohen’s d |
Personal, behavioral, and environmental factors | Descriptive statistics (n, %), linear mixed models (group, time, group × time, sex), Cohen’s d |