Table 1.
Bivariate associations between health-compromising behaviours, additional measures, and dieting status at baseline among Ontario adolescent girls in the COMPASS study (n = 3386), stratified by dieting status
| Dieting status | Chi-square (χ2) | ||||
|---|---|---|---|---|---|
| Parameter | N (%)a | Dieter (%)a | Non-dieter (%)a | ||
| Grade | 9 | 1850 (54.6) | 1051 (56.8) | 799 (43.2) | 3.41 |
| 10 | 1536 (45.4) | 897 (58.1) | 639 (41.9) | ||
| Ethnicity | White | 2487 (73.4) | 1426 (57.3) | 1061 (42.7) | 4.81 |
| Non-white | 887 (26.2) | 516 (58.2) | 371 (41.8) | ||
| BMI | Underweight | 45 (1.3) | 8 (17.8) | 37 (82.2) | 245.40** |
| Healthy weight | 2065 (61.0) | 1037 (50.2) | 1028 (49.8) | ||
| Overweight | 336 (10.0) | 296 (88.1) | 40 (11.9) | ||
| Obese | 89 (2.6) | 79 (88.8) | 10 (11.2) | ||
| Not stated | 851 (25.1) | 528 (62.0) | 323 (38.0) | ||
| Smoking | Yes | 116 (3.4) | 79 (68.1) | 37 (31.9) | 5.50* |
| No | 3270 (96.6) | 1869 (57.2) | 1401 (42.8) | ||
| Binge drinking | Yes | 372 (11.0) | 257 (69.1) | 115 (30.9) | 22.90** |
| No | 3008 (88.8) | 1687 (56.1) | 1321 (43.9) | ||
| Breakfast-skipping | Yes | 1731 (51.1) | 1105 (63.8) | 626 (36.2) | 58.71** |
| No | 1607 (47.5) | 815 (50.7) | 792 (49.3) | ||
*p value of < 0.05, **p value of < 0.001
aPercentages include all participants, and may not sum to 100% because of missing data