Coffee Consumption and Cystatin-C-Based Estimated Glomerular
Filtration Rates in Healthy Young Adults: Results of a Clinical Trial
Table 1
Clinical characteristics of subjects.
Mean ± SD
Age (years)
22.3 ± 1.7
Sex (male/female)
8/11
Height (cm)
163 ± 8.6
Body mass index (kg/m2)
21.3 ± 2.5
Systolic blood pressure (mm Hg)
120 ± 11.9
Diastolic blood pressure (mm Hg)
77 ± 8.8
Total cholesterol (mg/dL)
176 ± 21
High-density lipoprotein cholesterol (mg/dL)
68.7 ± 15.1
Triglycerides (mg/dL)
69.2 ± 37.5
Blood glucose (mg/dL)
85.6 ± 7.2
HbA1c (%, NGSP)
5.1 ± 0.2
HbA1c (mmol/mol, IFCC)
37 ± 2
Uric acid (mg/dL)
5.2 ± 1.3
Blood urea nitrogen (mg/dL)
14.5 ± 3.2
Creatinine (mg/dL)
0.71 ± 0.17
Creatinine-based eGFR (mL/min per 1.73 m2)
101 ± 16.5
Cystatin C (mg/L)
0.81 ± 0.13
Magnesium (mg/dL)
2.3 ± 0.2
Adiponectin (μU/mL)
10.6 ± 4.7
Habitual coffee consumption, n (%)
5 (26.3)
Habitual tea consumption, n (%)
7 (36.8)
Habitual alcohol consumption, n (%)
3 (15.8)
NGSP; National Glycohemoglobin Standardization Program, IFCC; International Federation of Clinical Chemistry and Laboratory Medicine. Habitual coffee, green tea, and alcohol consumers were defined as subjects who drink one or more cups of coffee or green tea and those who drink alcohol everyday, respectively.
