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Table 1 Characteristics of the study population (N = 1342)

From: Determinants of the creatinine clearance to glomerular filtration rate ratio in patients with chronic kidney disease: a cross-sectional study

Creatinine clearance (CrCl) (mL/min/1.73 m2)

54.9 ± 27.2

Iothalamate measured glomerular filtration rate (iGFR) (mL/min/1.73 m2)

48.0 ± 19.9

CrCl/iGFR, mean ± SD

1.19 ± 0.48

CrCl/iGFR, median (25th-75th percentile)

1.15 (0.92-1.39)

24-hrs urine albumin (mg/24 hrs) [median (25th-75th percentile)]

84 (11-643)

Age (years)

56.2 ± 12.2

Male, %

56.7%

Physical examinations

 Body mass index (kg/m2)

31.3 ± 6.8

 Body surface area (m2)

2.0 ± 0.3

 Systolic blood pressure (mmHg)

129 ± 22

 Diastolic blood pressure (mmHg)

73 ± 13

Race/Ethnicity; %

 Non-Hispanic white

42.3%

 Non-Hispanic black

36.8%

 Hispanic

14.0%

 Others

6.9%

Self-reported comorbidities, %

 Diabetes

48.3%

 Cardiovascular disease

26.4%

 Peripheral vascular disease

5.7%

 Stroke

8.0%

Current smoking, %

11.2%

Self-reported medication use, %

 Beta-blocker

46.9%

 Loop diuretics

35.3%

 Thiazide diuretics

27.9%

 Angiotension receptor blockers or angiotensin-converting enzyme

68.6%

 Statins

54.2%

Laboratory results

 Hematocrit (%)

37.4 ± 4.9

 Albumin (g/dL)

3.9 ± 0.5

 Serum creatinine (mg/dL)

1.61 ± 0.53

 BUN (mg/dL)

29 ± 13

 Triglyceride (mg/dL)

155 ± 112

 LDL cholesterol (mg/dL)

103 ± 36

 Fasting glucose (mg/dL)

113 ± 49

 Hemoglobin A1C (%)

6.6 ± 1.6

 hs-CRP (mg/L) [median (25th-75th percentile)]

2.2 (0.9-5.2)