Table 2.
Bivariate correlation between serum ZAG levels and other parameters.
| Serum ZAG levels (μg/mL)* | ||||
|---|---|---|---|---|
| Variables | All subjects | Control group | Central obesity group | MetS group |
| Age (year) | 0.022 | −0.030 | 0.021 | 0.109 |
| Male/female | −0.040 | 0.113 | −0.042 | −0.076 |
| Body weight (kg) | −0.118 | −0.013 | 0.086 | −0.022 |
| Body height (m) | 0.022 | −0.067 | 0.072 | 0.046 |
| BMI (kg/m2) | −0.170 | 0.054 | 0.045 | −0.096 |
| WC (cm) | −0.168 | 0.016 | 0.117 | −0.073 |
| HC (cm) | −0.114 | 0.085 | 0.046 | −0.024 |
| WHR | −0.168 | −0.046 | 0.097 | −0.085 |
| Fat mass (g) | −0.168 | 0.112 | 0.020 | −0.101 |
| Lean muscle mass (g) | −0.031 | −0.090 | 0.076 | 0.027 |
| Grip strength (kg) | −0.069 | −0.235 | −0.052 | 0.024 |
| Fat-to-muscle ratio | −0.129 | 0.165 | −0.036 | −0.093 |
| Body fat rate (%) | −0.128 | 0.152 | −0.041 | −0.092 |
| SBP (mmHg) | −0.077 | −0.028 | 0.089 | 0.108 |
| DBP (mmHg) | −0.046 | 0.018 | 0.181 | 0.135 |
| TP (g/L) | 0.018 | 0.124 | −0.061 | 0.064 |
| ALB (g/L) | 0.003 | 0.088 | −0.084 | 0.088 |
| TC (mmol/L) | 0.034 | −0.022 | 0.058 | 0.170 |
| TG (mmol/L) | −0.140 | 0.127 | −0.040 | −0.019 |
| HDL-C (mmol/L) | 0.186 | −0.063 | 0.069 | 0.162 |
| LDL-C (mmol/L) | 0.029 | −0.015 | 0.101 | 0.125 |
| GGT (U/L) | 0.001 | −0.096 | 0.162 | 0.063 |
| AST (U/L) | −0.009 | −0.102 | 0.189 | 0.052 |
| FBG (mmol/L) | −0.099 | −0.172 | 0.124 | −0.018 |
| FINS (mU/L) | −0.078 | −0.023 | 0.038 | 0.029 |
| HOMA-IR | −0.078 | −0.049 | 0.051 | 0.017 |
| Cr (μmol/L) | 0.077 | −0.098 | 0.039 | 0.212 |
| UA (μmol/L) | −0.027 | −0.043 | 0.015 | 0.127 |
| ALP (U/L) | 0.091 | 0.138 | 0.129 | 0.127 |
| Urea (mmol/L) | 0.049 | 0.028 | −0.147 | 0.161 |
| Birth place | −0.031 | −0.164 | −0.008 | −0.022 |
| Current address | −0.066 | −0.159 | −0.081 | −0.096 |
| Education level | 0.090 | 0.199 | 0.063 | 0.051 |
| Manual labor | 0.049 | −0.037 | 0.014 | 0.084 |
| Exercise frequency (day/week) | −0.087 | −0.290 | 0.030 | −0.091 |
Pearson's correlation tests were used. BMI, body mass index; WC, waist circumference; HC, hip circumference; WHR, waist-to-hip ratio; SBP, systolic blood pressure; DBP, diastolic blood pressure; TP, total protein; ALB, albumin; TC, total cholesterol; TG, triglycerides; HDL-C, high-density lipoprotein cholesterol; LDL-C, low-density lipoprotein cholesterol; GGT, gamma-glutamyl transpeptidase; AST, aspartate transaminase; FBG, fasting blood glucose; FINS, fasting insulin; HOMA-IR, homeostasis model assessment estimate of insulin resistance; Cr, creatinine; UA, uric acid; ALP, alkaline phosphatase; Urea, urea nitrogen; ZAG, zinc-a2-glycoprotein. Bold font indicated P < 0.05.
Variables were ln-transformed before analysis.