Associations of change in objectively measured MVPA and change in TPA between baseline and follow-up with self-reported Variety and Frequency measured at baseline and change in self-reported Variety and Frequency between baseline and follow-up.

Presented models were adjusted for school, age, sex, parent/guardian education level, age standardised body mass index, and baseline TPA.Variety (number of activities per week) and Frequency (number of activity sessions per week) variables were transformed to z-scores for analyses; therefore effect sizes are directly comparable.Associations were tested using multilevel linear regression.P–value for significance of the association of baseline Variety, baseline Frequency, change in Variety or change in Frequency with change MVPA or change TPA.MVPA, moderate-to-vigorous intensity physical activity; TPA, total physical activity; β Coef., β Coefficient; 95% CI, 95% confidence interval.