Table 1. Baseline characteristics of the participants^*.

Data are from NHANES III.

Characteristic	Unadjusted Data			Data adjusted with use of inverse probability weighting
	CRP and leptin levels		P value	CRP and leptin levels		P value
	Low (N=5493)	High (N=766)	P value	Low (N=5493)	High (N=766)	P value
Age (yr)	47.1±18.9	53.1±17.6	<0.001	47.9±18.5	50.4±21.6	0.16
Male sex (%)	46.9	43.6	0.082	46.1	39.4	0.067
Race			<0.001			0.91
Non-Hispanic white	42.6	41.0		42.4	41.2
Non-Hispanic black	26.1	34.5		27.5	29
Mexican American	26.9	21.8		26.0	24.8
Other	4.4	2.7		4.1	5.0
Body-mass index^†	26.3±5.0	34.0±6.3	<0.001	27.3±5.7	29.2±6.2	<0.001
Waist circumference (cm)	90.9±13.0	109.8±12.9	<0.001	93.4±14.3	98.2±14.8	<0.001
History of heart failure (%)	2.4	5.1	<0.001	2.9	5.4	0.11
History of myocardial infarction (%)	3.1	8.5	<0.001	3.9	5.8	0.26
Cerebrovascular disease (%)	2.3	4.4	<0.001	2.7	4.8	0.19
Intermittent claudication (%)	0.7	1.4	0.029	0.8	0.8	0.96
Hypertension (%)	31.8	54.4	<0.001	34.9	42.0	0.052
Dyslipidemia	52.7	70.0	<0.001	54.9	62.8	0.088
Angina (%)			<0.001			0.080
None	96.2	91.9		95.5	91.9
Grade I	2.3	4.3		2.6	5.4
Grade II	1.5	3.8		1.9	2.7
Diabetes (%)			<0.001			0.16
None	89.8	77.4		88.2	85.7
Any	9.9	21.3		11.4	13.9
Requiring insulin	0.4	1.3		0.4	0.4
Chronic kidney disease (%)	22.3	34.9	<0.001	24.2	29.2	0.082
Chronic lung disease (%)	10.8	15.3	<0.001	11.3	12.0	0.75
Smoking status (%)			<0.001			0.53
Never smoker	50.4	46.6		50.0	52.2
Former smoker	23.8	31.2		24.7	25.9
Current smoker	25.8	22.2		25.3	21.8
Family history of myocardial infarction	8.5	8.1	0.70	8.4	6.9	0.30

Plus-minus values are means ± SDs

^†

The body-mass index is the weight in kilograms divided by the square of the height in meters

Table 1. Baseline characteristics of the participants*.