Table 2.
Results from logistic regression analysis (using GEE) predicting odds of diet pill use by vomiting, purging, excessive exercise, tobacco use, and caffeine use, adjusted for age at interview, and prevalence of diet pill use by presence and absence of behaviors.
| Behavior | % Diet Pill Users in those with behavior present
(n diet pill users/ n with behaviora) |
% Diet Pill Users in those with behavior absent
(n diet pill users/ n without behaviora) |
Chi-Square (p) | OR (95% CI) |
|---|---|---|---|---|
| Vomiting | 42.8% (363/848) | 14.3% (71/496) | 47.52 (<0.0001) | 3.06 (2.23-4.21) |
| Purging | 49.7% (313/630) | 17.0% (120/707) | 58.46 (<0.0001) | 3.20 (2.39-4.28) |
| Excessive Exercise | 34.7% (185/533) | 30.7% (249/812) | 1.09 (0.30) | 1.15 (0.88-1.50) |
| Tobacco Use | 45.1% (139/308) | 28.4% (295/1037) | 5.14 (0.02) | 1.43 (1.06-1.94) |
| Caffeine Use | 37.2% (360/967) | 19.1%(58/303) | 21.63 (<0.0001) | 2.17 (1.56-3.03) |
a
Total N’s may differ due to missing data.