Table 5.
Weight perception as a predictor of dietary behaviours among youth in the COMPASS study (2-year linked data), stratified by gender and BMI classificationa.
|
Girls |
Boys |
|||
|---|---|---|---|---|
|
BMI classification |
BMI classification |
|||
| Nonoverweightb | Overweight/obese | Nonoverweight | Overweight/obese | |
| AOR, 95% CI, p-value | AOR, 95% CI, p-value | AOR, 95% CI, p-value | AOR, 95% CI, p-value | |
| Fruit and vegetable intakec (adequate vs. inadequate [reference]) | ||||
| Overweightd | 0.9, (0.6,1.2), p=.2993 | 1 | 1.1, (0.7,1.9), p=.6228 | 1 |
| About right | 1 | 2.2, (1.4,3.5), p=.0011 | 1 | 1.3, (0.9,1.8), p=.1066 |
| Underweight | 1.0, (0.7,1.3), p=.7668 | 0.8, (0.6,1.2), p=.2807 | ||
| Sugar-sweetened beverages (4-7, 1-3, vs. 0 days/week [reference]) | ||||
| Overweight | 1.0, (0.9,1.2), p=.7581 | 1 | 0.9, (0.7,1.2), p=.5445 | 1 |
| About right | 1 | 1.1, (0.8,1.4), p=.5648 | 1 | 1.0, (0.8,1.1), p=.5891 |
| Underweight | 1.4, (1.2,1.6), p=.0001 | 1.1, (1.0,1.2), p=.0726 | ||
| Consumed energy drink(s) in past week (yes vs. no [reference]) | ||||
| Overweight | 1.2, (0.9,1.6), p=.1262 | 1 | 1.1, (0.8,1.6), p=.4178 | 1 |
| About right | 1 | 0.9, (0.6,1.3), p=.5948 | 1 | 0.9, (0.7,1.1), p=.1788 |
| Underweight | 1.4, (1.0,1.8), p=.0355 | 1.0, (0.8,1.2), p=.8656 | ||
| Breakfast skipping (eats breakfast regularly vs. skips 3 or more days/week [reference]) | ||||
| Overweight | 0.7, (0.6,0.8), p=<.0001 | 1 | 0.8, (0.6,1.0), p=.0237 | 1 |
| About right | 1 | 0.9, (0.7,1.3), p=.6908 | 1 | 1.4, (1.1,1.7), p=.0025 |
| Underweight | 0.8, (0.7,0.9), p=.0050 | 0.9, (0.8,1.0), p=.0286 | ||
| Weekday lunches from fast food/restaurants (3–5, 1–2, vs. 0 days/week [reference]) | ||||
| Overweight | 1.0, (0.9,1.2), p=.5535 | 1 | 1.1, (0.8,1.3), p=.6617 | 1 |
| About right | 1 | 1.0, (0.8,1.3), p=.8967 | 1 | 1.0, (0.9,1.2), p=.6936 |
| Underweight | 1.1, (0.9,1.3), p=.2796 | 1.0, (0.9,1.2), p=.5955 | ||
| Fast food on weekends (yes vs. no [reference]) | ||||
| Overweight | 1.1, (1.0,1.3), p=.2302 | 1 | 1.2, (0.9,1.5), p=.1641 | 1 |
| About right | 1 | 0.9, (0.8,1.2), p=.5398 | 1 | 0.9, (0.8,1.1), p=.2090 |
| Underweight | 1.2, (1.0,1.4), p=.0374 | 1.1, (1.0,1.3), p=.0964 | ||
| Vending machine/store snacks (4–7, 1–3, vs. 0 days/week [reference]) | ||||
| Overweight | 1.0, (0.9,1.2), p=.9387 | 1 | 1.0, (0.7,1.3), p=.7728 | 1 |
| About right | 1 | 1.0, (0.8,1.3), p=.8273 | 1 | 1.0, (0.9,1.2), p=.9501 |
| Underweight | 1.3, (1.1,1.6), p=.0022 | |||
Note: Results for underweight perceptions in the overweight/obese category were not reported due to limited power
a
Models adjusted for student-level grade, race/ethnicity, weekly spending money, and the outcome measure in the prior year, and for school area median household income and school cluster.
b
BMI classification based on self-reported height and weight and age- and sex- adjusted cut-offs.
c
based on Canada's Food Guide recommendations of 7 and 8 vegetable and fruit servings for girls and boys, respectively.