Clinical characteristics of participants according to quartiles of adiponectin
| Characteristics | Adiponectin | χ2/F/Z | P value | |||
| Quartile 1 | Quartile 2 | Quartile 3 | Quartile 4 | |||
| n (%) | 941 (25.58) | 928 (25.22) | 917 (24.93) | 893 (24.28) | – | – |
| Distribution (mg/L) | 2.30 (1.90; 2.50) | 3.40 (3.10; 3.70) | 4.60 (4.30; 4.90) | 6.80 (6.00; 7.90) | – | – |
| Male (%) | 315 (33.51) | 449 (48.59) | 536 (58.58) | 617 (69.33) | 255.96 | <0.001 |
| Age (years) | 42.75±11.35 | 44.18±13.10 | 45.49±14.19 | 49.45±15.48 | 40.76 | <0.001 |
| Height (cm) | 164.54±8.29 | 162.63±8.62 | 160.86±8.75 | 158.86±8.21 | 74.83 | <0.001 |
| Weight (kg) | 69.96±12.10 | 64.58±10.45 | 60.67±11.11 | 56.44±9.86 | 252.6 | <0.001 |
| FPG (mmol/L) | 5.26±1.18 | 5.05±0.93 | 4.99±0.89 | 4.98±0.84 | 16.10 | <0.001 |
| HbA1c (%) | 5.55±0.76 | 5.40±0.61 | 5.38±0.56 | 5.40±0.66 | 13.01 | <0.001 |
| BMI (kg/m2) | 25.75±3.40 | 24.37±3.11 | 23.38±3.46 | 22.35±3.40 | 170.9 | <0.001 |
| WC (cm) | 87.42±9.51 | 83.40±9.34 | 80.01±9.62 | 77.34±9.92 | 179.6 | <0.001 |
| HC (cm) | 97.72±6.87 | 95.85±6.31 | 93.66±7.19 | 91.93±7.13 | 116.3 | <0.001 |
| WHR | 0.89±0.06 | 0.87±0.07 | 0.85±0.07 | 0.84±0.07 | 98.91 | <0.001 |
| SBP (mm Hg) | 121.04±15.30 | 119.47±14.36 | 119.12±15.56 | 118.17±14.59 | 5.684 | 0.0007 |
| DBP (mm Hg) | 74.97±10.35 | 73.31±9.48 | 72.75±10.25 | 71.62±9.49 | 17.78 | <0.001 |
| TC (mmol/L) | 5.14±1.08 | 5.07±0.97 | 5.12±1.11 | 1.20±1.05 | 2.21 | 0.085 |
| TG (mmol/L) | 2.08±1.42 | 1.53±1.07 | 1.33±0.85 | 1.11±0.72 | 141.20 | <0.001 |
| LDL-C (mmol/L) | 3.13±0.88 | 3.03±0.82 | 3.03±0.90 | 3.00±0.91 | 3.889 | 0.009 |
| HDL-C (mmol/L) | 1.31±0.48 | 1.43±0.51 | 1.53±0.53 | 1.67±0.56 | 74.87 | <0.001 |
Data are expressed as mean±SD or medians (IQRs) for skewed variables or numbers (proportions) for categorical variables.
P values were for the χ2 or analysis of variance or Z test across the groups. Significant p-values (p < 0.05) were in bold.
BMI, body mass index; DBP, diastolic blood pressure; FPG, fasting plasma glucose; HbA1c, glycosylated haemoglobin; HC, hip circumference; HDL-C, high-density lipoprotein cholesterol; LDL-C, low-density lipoprotein cholesterol; SBP, systolic blood pressure; TC, total cholesterol; TG, triglycerides; WC, waist circumference; WHR, waist-to-hip ratio.