Table 3.

Distribution of urine albumin and creatinine concentrations in the US population, National Health and Nutrition Examination Survey III 1988 to 1994, by sex and race/ethnicitya

VariableAll SubjectsMenWomenNHWNHBMA
a NHW, non-Hispanic white; NHB, non-Hispanic black; MA, Mexican American; ACR, urine albumin (μg)/creatinine (mg) ratio; Cr/BMI, urine creatinine (mg/dl)/body mass index (kg/m2). P values are as follows: a, P < 0.0001; b, P < 0.001; c, P = 0.02.
b Data from subjects with ACR ≥300 are excluded.
c Data from men with ACR ≥250 and women with ACR ≥355 are excluded.
Urinary albuminb (μg/ml)
    mean ± SEM14.6 ± 0.514.7 ± 0.614.5 ± 0.713.6 ± 0.621.4 ± 0.8 a15.7 ± 1.0
    5–95th percentile0.7–50.50.7–49.00.7–52.80.7–45.00.9–88.80.5–50.4
Urinary creatinineb (mg/dl)
    mean ± SEM129.3 ± 1.4152.0 ± 2.0108.0 ± 1.5 a123.1 ± 1.6168.2 ± 1.6 a139.0 ± 2.0 a
    5–95th percentile21.2–276.330.6–299.418.1–245.920.3–268.536.7–323.723.6–282.3
    Cr/BMI5.0 ± 0.15.9 ± 0.14.3 ± 0.1 a4.8 ± 0.16.4 ± 0.1 a5.2 ± 0.1 b
ACRb (μg/mg)
    mean ± SEM12.5 ± 0.410.5 ± 0.514.4 ± 0.5 a12.3 ± 0.514.5 ± 0.5 c12.1 ± 0.5
    5–95th percentile1.0–46.60.8–36.81.2–56.71.2–43.00.6–67.00.6–44.1
Microalbuminuria
    ACR ≥30–299b7.6%6.0%9.2% a7.2%10.2% a7.2%
    population estimate in millions12.94.98.09.31.80.6
ACR
    ≥17–249c in men and ≥25–354c in women10.7%10.4%11.0%10.3%13.6% b9.9%
    population estimate in millions18.48.69.813.62.50.9