Table 1 Characteristics of participants enrolled in year 2 (2013–2014) and year 3 (2014–2015) of the COMPASS study

Mean Baseline Age (years)

15.1 (0.02)

 Male

46.4 %

 Female

53.6 %

 9

37.6 %

 10

33.9 %

 11

26.4 %

 12

2.1 %

Ethnicity (% White)

73.7 %

 I don’t know, NS

13.5 %

 Zero

18.4 %

 $1-$5

7.9 %

 $6-$10

9.6 %

 $11–20

16.7 %

 $21–40

12.5 %

 $41–100

11.8 %

 $100+

9.7 %

 Change in PE status from Y₂ – Y₃

54.5 %

Typical MVPA in previous week

 Change in Typical MVPA status from Y₂ – Y₃

41.9 %

 Average Time 1 MVPA (min/day)

119.5 (1.4)

 Average Time 2 MVPA (min/day)

114.1 (1.5)