Table 2. Demographics of the nondiabetic subjects according to albuminuria tertile.

	UACR tertiles			P value	Post hoc analysis
	Lower	Middle	Upper
UACR range (Male)	0.04–1.46	1.47–3.33	≥3.34
UACR range (Female)	0.04–1.91	1.91–4.77	≥4.77
Age (years)	40.1±0.5	39.2±0.4	42.4±0.6	<0.001	Lower, Middle < Upper
Male sex (%)	49.9±1.7	48.4±1.7	49.4±1.6	0.818
Waist circumference (cm)	79.2±0.3	78.6±0.3	80.3±0.4	0.002	Middle < Upper
Triglyceridea (mg/dL)	95.9 (92.4–99.5)	97.5 (93.9–101.2)	106.3 (102.2–110.7)	0.001	Lower, Middle < Upper
HDL cholesterol (mg/dL)	50.4±0.4	51.5±0.4	50.2±0.4	0.045	Upper < Middle
Fasting glucose (mg/dL)	88.9±0.2	88.4±0.2	88.9±0.2	0.111
Mean arterial pressure (mmHg)	86.3±0.4	86.9±0.3	90.5±0.4	<0.001	Lower, Middle < Upper
Medical comorbidities
Hypertension (%)	5.6±0.7	6.2±0.7	15.0±1.0	<0.001
Dyslipidemia (%)	4.3±0.6	5.1±0.6	6.5±0.7	0.067
Renal failure (%)	0.1±0.1	N/Ab	0.6±0.3	0.006
Education level				<0.001
≤Elementary school (%)	9.7±1.0	8.3±0.8	16.2±1.3
Middle school graduate (%)	7.7±0.8	7.4±0.9	8.9±0.9
High school graduate (%)	44.1±1.8	44.5±1.6	43.6±1.8
≥College graduate (%)	38.5±1.7	39.7±1.6	31.3±1.7
Heavy drinking (%)	4.2±0.7	6.8±0.9	6.0±0.9	0.097
Ever smoking (%)	44.5±1.6	44.3±1.7	46.7±1.7	0.495
Moderate exercise (%)	22.6±1.5	17.5±1.3	18.5±1.3	0.019
eGFR (ml/min/1.73m2)	100.0±0.5	101.7±0.6	101.2±0.5	0.036	Lower < Middle
IOP (mmHg)	13.9±0.1	13.8±0.1	13.8±0.1	0.867

eGFR, estimated glomerular filtration rate; HDL cholesterol, high-density lipoprotein cholesterol; IOP, intraocular pressure; UACR, urinary albumin-to-creatinine ratio. All means and frequencies (%) are weighted estimates with standard errors.

^a Geometric mean (95% confidence interval)

^b Not available due to no subject