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. Author manuscript; available in PMC: 2015 Sep 8.
Published in final edited form as: Clin Chem. 2013 Jan 11;59(4):675–683. doi: 10.1373/clinchem.2012.195644

Table 1.

Characteristics of adult participants (age ≥20 years) in NHANES 2009–2010 who had a random urine ACR measurement only, and those with ACR measurements in both random and first morning urine samples.a

Random
urine ACR
only
Both
random
and first
morning
urine ACR
χ2P
value
Number of participants 812 5,247
Age, years <0.001
  20–49 70.3 (2.23) 55.1 (1.46)
  ≥50 29.7 (2.23) 44.9 (1.46)
Male 52.2 (1.83) 47.8 (0.49) 0.07
Female 48.8 (1.83) 52.2 (0.49)
Race/ethnicityb 0.001
  Non-Hispanic white 63.5 (4.96) 74.4 (3.04)
  Non-Hispanic black 17.0 (2.10) 11.6 (1.00)
  Hispanic 19.5 (4.59) 14.0 (2.91)
Diabetesc 8.1 (1.70) 8.6 (0.42) 0.80
Hypertensiond 28.4 (1.94) 36.2 (1.35) 0.003
eGFR,emL · min−1 · (1.73 m2)−1 0.004
  ≥90 63.0 (2.24) 55.5 (1.39)
  60–89 30.5 (2.29) 39.0 (1.25)
  30–59 5.3 (0.86) 5.0 (0.39)
a

Data are weighted percent ± SE.

b

“Other” not listed owing to small sample size (n = 298).

c

Defined by self-report of diagnosis.

d

Defined by self-report of diagnosis, self-reported anti-hypertensive treatment, or measured systolic blood pressure ≥140 mmHg or diastolic blood pressure ≥90 mmHg.

e

Defined by MDRD equation; <30 mL · min−1 · (1.73 m2)−1 not listed owing to small sample size (n = 33).