Table 2.

Baseline characteristics according to baseline levels of fasting serum glucose

Variable	Fasting serum glucose (mg/dL)
		<90			90-125			126+			P*
		n	Mean (SD)	n	Mean (SD)	N	Mean (SD)				P*
Age (y)	308,380	55.5 (8.1)	282,528	55.9 (8.1)	40,264	57.3 (8.0)	<0.0001
BMI (kg/m²)	308,380	23.4 (2.8)	282,528	23.7 (2.9)	40,264	24.0 (2.9)	<0.0001
Total cholesterol (mg/dL)	307,928	195.3 (37.7)	282,525	201.1 (39.4)	40,260	209.7 (47.9)	<0.0001
SBP (mm Hg)	308,304	125.7 (18.7)	282,443	128.9 (19.5)	40,251	132.8 (20.4)	<0.0001
ALT	307,908	22.1 (14.8)	282,497	24.1 (16.8)	40,259	28.1 (23.9)	<0.0001

		%		%		%
Current smoking	308,380	33.1	282,528	34.1	40,264	37.0	<0.0001
Alcohol drinking	308,380	43.2	282,528	49.0	40,264	51.0	<0.0001
Family history of diabetes	245,298	4.4	223,759	5.2	32,097	14.6	<0.0001

↵* Tested using ANOVA for continuous variables and χ² test for categorical variables.