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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)