Table 3.

Responses of Body Mass Index Knowledge Questions and Comorbid Conditions for Patients With Body Mass Index <30 versus Patients With Body Mass Index ≥30 (West Virginia and New Jersey)

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.