Table 3.
Descriptive statistics for predictor and outcome measures among boys in the COMPASS study (Y3 data 2014/2015).
|
BMI classificationa |
|||
|---|---|---|---|
| Normal weight (n=4,959) | Overweight/Obese (n=2,466) | ||
| Mean (SD) | Mean (SD) | T-test | |
| Vigorous physical activity (PA; average minutes/day) | 77.33 (55.46) | 77.72 (58.51) | p=.7865 |
| Moderate-intensity PA (average minutes/day) | 60.99 (53.15) | 60.72 (53.40) | p=.8350 |
| % (n)b | % (n) | Chi-square | |
| Weight Perception | |||
| Very/slightly underweight | 30.8 (1529) | 3.1 (76) | p<.0001 |
| “About right” | 63.0 (3125) | 41.5 (1024) | p<.0001 |
| Very/slightly overweight | 6.2 (305) | 55.4 (1366) | p<.0001 |
| Physical education class enrollment | |||
| Yes | 21.9 (1431) | 16.7 (281) | p<.0001 |
| No | 78.1 (5114) | 83.3 (1402) | |
| School-organized PA (e.g., intramurals) | |||
| Yes | 29.6 (1465) | 28.8 (706) | p=.4557 |
| No | 70.4 (3479) | 71.2 (1746) | |
| School league/team sports (e.g., varsity) | |||
| Yes | 54.1 (2678) | 49.8 (1225) | p=.0005 |
| No | 45.9 (2270) | 50.2 (1233) | |
| League/team sports outside of school | |||
| Yes | 58.1 (2870) | 56.2 (1378) | p=.1158 |
| No | 41.9 (2072) | 43.8 (1076) | |
| Meets PA guidelinesc | |||
| Yes | 56.9 (2785) | 56.3 (1361) | p=.6213 |
| No | 43.1 (2108) | 43.7 (1056) | |
| Meets resistance exercise guidelinesc | |||
| Yes | 59.7 (2905) | 59.3 (1454) | p=.6147 |
| No | 41.3 (2045) | 40.7 (998) | |
| Adequate fruit and vegetable intaked | |||
| Yes | 4.7 (230) | 4.6 (110) | p=.7839 |
| No | 95.3 (4649) | 95.4 (2297) | |
| Sugar-sweetened beverages (days/week) | |||
| 0 | 18.4 (896) | 19.4 (466) | p=.3848 |
| 1-3 | 48.3 (2109) | 42.9 (1030) | p=.5320 |
| 4-7 | 38.3 (1865) | 37.6 (903) | p=.4059 |
| Consumed energy drink(s) in past week | |||
| Yes | 82.7 (4043) | 80.8 (1948) | p=.0409 |
| No | 17.3 (843) | 19.2 (463) | |
| Breakfast skipping | |||
| Skips 3 or more days/week | 32.0 (1572) | 37.0 (895) | p<.0001 |
| Eats breakfast regularly (5-7/week) | 68.0 (3339) | 63.0 (1527) | |
| Weekday lunches from fast food/restaurants | |||
| 0 | 48.8 (2396) | 52.6 (1272) | p=.0080 |
| 1-2 | 36.2 (1774) | 34.2 (826) | p=.0526 |
| 3-5 | 15.0 (735) | 13.2 (320) | p=.0320 |
| Fast food on weekends | |||
| Yes | 50.3 (2470) | 49.2 (1190) | p=.3841 |
| No | 49.7 (2441) | 50.8 (1228) | |
| Vending machine/store snacks (days/week) | |||
| 0 | 66.9 (3251) | 67.7 (1626) | p=.7459 |
| 1-3 | 29.3 (1422) | 28.4 (681) | p=.3399 |
| 4-7 | 3.8 (183) | 4.0 (95) | p=.7289 |
Note: descriptive statistics only reported for student with non-imputed Y3 BMI data
a
BMI classification based on self-reported height and weight and age- and sex- adjusted cut-offs.
b
Numbers may not add to total due to rounding and/or missing data.
c
based on CSEP (2016) guidelines for youth of 60 minutes of moderate/vigorous physical activity a day and strengthening exercises at least 3 days a week.
d
based on Canada's Food Guide recommendations of 7 and 8 servings for girls and boys, respectively.