Predictors of One-Year Change in How Youth Perceive Their Weight
Table 1
Year 3 (2014/2015) descriptive statistics among grade 9–12 students with 2-year linked data for Year 3 (2014/2015) and Year 4 (2015/2016) in the COMPASS study.
Female (n = 9225)
Male (n = 8655)
Chi-square
% (n)b
% (n)b
value
Grade
9
35.7 (3295)
38.0 (3286)
<0.0001
10
34.8 (3209)
34.5 (2989)
11
28.2 (2601)
25.6 (2214)
12
1.3 (120)
1.9 (166)
Ethnicity
White
72.6 (6698)
68.3 (5911)
<0.0001
Nonwhite
27.4 (2527)
31.7 (2744)
BMI classificationa
Underweight
1.3 (117)
1.6 (135)
<0.0001
Normal weight
59.5 (5492)
51.9 (4490)
Overweight/obesity
15.0 (1383)
25.6 (2217)
Missing BMI
24.2 (2233)
20.9 (1813)
WP
Underweight
11.0 (1006)
21.9 (1864)
<0.0001
“About right”
57.5 (5237)
55.9 (4767)
Overweight
31.5 (2872)
22.2 (1897)
PA
School-organized PA (e.g., intramurals)
Yes
39.6 (3631)
48.4 (4135)
<0.0001
No
60.4 (5535)
51.6 (4415)
School league/team sports (e.g., varsity)
Yes
37.6 (3445)
41.9 (3588)
<0.0001
No
62.4 (5710)
58.1 (4974)
League/team sports outside of school
Yes
47.5 (4338)
58.1 (4975)
<0.0001
No
52.5 (4797)
41.9 (3587)
Met MVPA guidelinesc
Yes
47.5 (4338)
58.1 (4975)
<0.0001
No
52.5 (4797)
41.9 (3587)
Met resistance exercise guidelinesc
Yes
50.3 (4601)
57.4 (4900)
<0.0001
No
49.7 (4552)
42.6 (3644)
Screen time
TV/movies
≤2 hours/day
43.6 (4012)
47.6 (4112)
<0.0001
>2 hours/day
56.4 (5200)
52.4 (4526)
Video/computer games
≤2 hours/day
89.5 (8248)
50.9 (4398)
<0.0001
>2 hours/day
10.5 (964)
49.1 (4240)
Surfing the Internet
≤2 hours/day
48.1 (4432)
61.7 (5327)
<0.0001
>2 hours/day
51.9 (4780)
38.3 (3311)
Talking on the telephone
≤2 hours/day
89.1 (8204)
94.0 (8117)
<0.0001
>2 hours/day
10.9 (1008)
6.0 (521)
Texting/messaging/emailing
≤2 hours/day
48.1 (4429)
67.6 (5842)
<0.0001
>2 hours/day
51.9 (4780)
32.4 (2796)
Bullying victimization in the last 30 days
Physical
Yes
1.2 (107)
3.2 (273)
<0.0001
No
98.8 (9118)
96.8 (8382)
Verbal
Yes
16.9 (1557)
11.9 (1031)
<0.0001
No
83.1 (7668)
88.1 (7624)
Cyber
Yes
7.5 (692)
2.2 (191)
<0.0001
No
92.5 (8533)
97.8 (8464)
Stolen/damaged belongings
Yes
2.3 (214)
3.1 (265)
<0.0001
No
97.7 (9011)
96.9 (8390)
aBMI classification based on self-reported height and weight and age- and sex-adjusted cutoffs. bNumbers may not add to total due to rounding and/or missing data. cBased on PA guidelines for youths doing at least 60 min/day of MVPA and strengthening exercises at least 3 days/week.
