Table 1.

Baseline characteristics of the participants.

	Tertile of HDL-C (mg/dL)
Characteristic	1 (<46.2)	2 (46.2–58.4)	3 (>58.4)	P-value*
Number of participants	9084	8987	9010
Mean age (SD), years	54.0 (7.3)	53.9 (7.0)	54.5 (6.9)	<0.0001
Mean body mass index (SD), kg/m2	28.1 (5.5)	25.6 (4.5)	23.9 (3.8)	<0.0001
Hormone therapy use, %	31.9	42.6	56.2	<0.0001
Aspirin use, %	49.6	50.1	50.3	0.61
Vitamin E use, %	49.8	50.3	49.8	0.72
Current smokers, %	15.5	10.7	8.5	<0.0001
White race, %	95.0	95.3	95.4	0.44

^*P-values were calculated using analysis of variance for continuous variables and chi-square tests for categorical variables.

Abbreviations: HDL-C, high-density lipoprotein cholesterol