Urinary albumin excretion and prevalence of microalbuminuria in a general Chinese population: a cross-sectional study

Table 2 24-h urinary albumin excretion (mg/d) and prevalence of microalbuminuria (%, 95% CI) by selected risk factors

	24-h urinary albumin excretion (mg/d)							Microalbuminuria	P value
	N	Mean	P5	P25	P50	P75	P95	% (95% CI)	P value
Total	1980	10.5	2.9	4.5	6.1	8.7	24.9	4.1 (3.2-5.0)	-
Gender
Men	1038	10.4	2.9	4.4	6.0	8.5	24.6	3.7 (2.9-4.5)	0.32
Women	942	10.7	3.0	4.6	6.2	8.9	26.2	4.6 (3.7-5.5)
Age (years)
18 ~ 29	499	8.7	2.4	4.3	5.7	8.3	22.9	3.0 (2.2-3.8)	0.49
30 ~ 39	500	10.1	3.2	4.7	6.1	8.9	24.3	4.6 (3.7-5.5)
40 ~ 49	385	11.8	3.0	4.6	6.1	8.8	26.7	3.9 (3.0-4.8)
≥50	596	11.5	2.9	4.5	6.3	8.9	28.7	4.7 (3.8-5.6)
BMI
Low weight	70	9.0	2.4	4.1	5.1	7.2	13.3	1.4 (0.9-1.9)	0.10
normal	885	9.7	2.8	4.4	6.0	8.4	21.0	3.5 (2.7-4.3)
overweight	670	10.2	3.0	4.4	6.1	8.8	25.1	3.9 (3.0-4.8)
obese	353	13.4	3.1	5.0	6.7	10.1	53.3	6.2 (5.1-7.3)
Current smoker
Yes	517	10.4	2.8	4.2	5.7	8.2	24.2	3.5 (2.7-4.3)	0.42
No	1463	10.6	3.0	4.6	6.2	8.9	25.1	4.3 (3.4-5.2)
Hypertension
Yes	468	15.5	3.2	4.8	6.7	10.8	50.2	8.1 (6.9-9.3)	<0.0001
No	1512	9.0	2.8	4.4	6.0	8.2	19.4	2.8 (2.1-3.5)
Diabetes,%
Yes	123	18.1	3.2	5.3	7.6	11.3	68.2	11.4 (10.0-12.8)	<0.0001
No	1857	10.0	2.9	4.5	6.0	8.6	22.9	3.6 (2.8-4.4)
High TC,%
Yes	78	10.6	3.2	5.0	6.5	9.4	40.8	7.7 (6.5-8.9)	0.10
No	1902	10.5	2.9	4.5	6.0	8.7	24.6	3.9 (3.0-4.8)
High LDL,%
Yes	15	8.6	2.1	3.8	7.9	9.7	30.0	6.7 (5.6-7.8)	0.62
No	1965	10.5	2.8	4.5	6.1	8.7	24.8	4.1 (3.2-5.0)
Low HDL,%
Yes	224	13.3	2.8	4.6	6.1	9.6	26.9	4.9 (3.9-5.9)	0.51
No	1756	10.1	2.9	4.5	6.1	8.7	24.8	4 .0(3.1-4.9)
High TG,%
Yes	265	12.3	3.1	4.8	6.4	10.0	35.0	6.0 (5.0-7.0)	0.10
No	1715	10.2	2.8	4.5	6.0	8.6	23.5	3.8 (3.0-4.6)

ISSN: 1471-2369