| BMI Knowledge Questions and Comorbid Conditions | Overall (n = 511) | Patients With BMI <30 (n = 307) | Patients With BMI >30 (n = 194) | Odds Ratio (95% CI)* | P Value† |
|---|---|---|---|---|---|
| Knowledge questions | |||||
| What does BMI stand for?‡ | 59.9 | 60.9 | 59.3 | 0.93 (0.65–1.35) | .72 |
| BMI is related to what medical concern?‡ | 49.9 | 50.2 | 50.0 | 0.99 (0.69–1.42) | .97 |
| A BMI of 25 or greater means…‡ | 17.5 | 17.6 | 17.1 | 0.97 (0.60–1.56) | .89 |
| A BMI of 30 or greater means…‡ | 16.8 | 15.6 | 19.1 | 1.27 (0.79–2.04) | .32 |
| A BMI of 40 or greater means…‡ | 14.5 | 13.4 | 16.0 | 1.23 (0.74–2.05) | .41 |
| Do you know what your BMI is?‡ | 16.8 | 21.4 | 10.4 | 0.43 (0.25–0.73) | .002 |
| Have you heard of BMI before this survey?§ | 60.5 | 63.4 | 58.0 | 0.80 (0.55–1.15) | .23 |
| Has your doctor ever discussed BMI with you?§ | 17.1 | 16.6 | 18.1 | 1.11 (0.69–1.79) | .66 |
| Comorbid conditions (%) | |||||
| Hypertension | 40.6 | 31.7 | 55.5 | 2.69 (1.85–3.90) | <.001 |
| Hyperlipidemia | 31.2 | 26.7 | 38.0 | 1.68 (1.14–2.48) | .008 |
| Diabetes mellitus | 14.4 | 9.5 | 22.6 | 2.78 (1.67–4.64) | <.001 |
| Sleep apnea | 9.7 | 5.3 | 16.4 | 3.49 (1.85–6.59) | <.001 |
↵* Odds ratio of body mass index (BMI) knowledge questions or comorbid conditions, comparing patients with a BMI ≥30.0 with patients with a BMI <30.0.
↵† χ2 Comparison of responses of BMI knowledge questions between patients with a BMI <30.0 and patients with a BMI ≥30.0.
↵‡ Percentage with the correct answer.
↵§ Percentage answering “yes.”
CI, confidence interval.