Table 2.
Correlation between UCPCR and the above variables in healthy individuals. BMI: body mass index; WHR: waist-to-hip ratio; AUC: area under the curve; HbA1c: hemoglobin A1c; HOMA-IR: Homeostatic Model Assessment for Insulin Resistance; ISI: Insulin Sensitivity Index; UCP: urinary C-peptide; UCR: urinary creatinine; UCPCR: urinary C-peptide-to-creatinine ratio. Numbers in bold are considered statistically significant (p value < 0.05).
| Variables | r | p-Value |
|---|---|---|
| Age (years) | 0.119 | 0.034 |
| BMI (kg/m2) | 0.111 | 0.048 |
| Hip circumference (cm) | 0.114 | 0.043 |
| Waist circumference (cm) | 0.116 | 0.039 |
| WHR | 0.017 | 0.760 |
| Weight (kg) | 0.053 | 0.345 |
| Height (cm) | −0.036 | 0.527 |
| Total lean mass (kg) | −0.008 | 0.888 |
| Total fat mass (kg) | 0.083 | 0.141 |
| Fasting blood glucose (mg/dL) | 0.095 | 0.090 |
| AUC glucose | 0.019 | 0.735 |
| HbA1c (mmol/mol) | 0.146 | 0.009 |
| Fasting blood C-peptide (ng/mL) | 0.227 | <0.001 |
| 1-h stimulated blood C-peptide (ng/mL) | 0.098 | 0.081 |
| 2-h C-peptide (ng/mL) | 0.066 | 0.238 |
| AUC C-peptide | 0.126 | 0.025 |
| Fasting blood insulin (mU/L) | 0.111 | 0.047 |
| AUC insulin | 0.073 | 0.196 |
| HOMA-IR | 0.112 | 0.047 |
| HOMA-beta (%) | 0.104 | 0.066 |
| ISI Stumvoll | −0.078 | 0.164 |
| ISI Cederholm | −0.029 | 0.604 |
| Matsuda index | −0.101 | 0.072 |
| Blood creatinine (mg/dL) | −0.115 | 0.041 |