Table 4.
The metabolic characteristics at baseline in the Lanxi cohort study
| Variables* | Overall | Urban | Rural | P value† | |||
| Mean | SD | Mean | SD | Mean | SD | ||
| Systolic blood pressure (mm Hg) | 124.61 | 19.07 | 122.76 | 19.32 | 128.01 | 18.12 | <0.001 |
| Diastolic blood pressure (mm Hg) | 78.74 | 10.72 | 78.21 | 11.15 | 79.71 | 9.81 | <0.001 |
| Fasting blood glucose (mmol/L) | 5.24 | 1.28 | 5.23 | 1.28 | 5.26 | 1.28 | 0.423 |
| HbA1c (%) | 5.61 | 0.90 | 5.67 | 0.92 | 5.52 | 0.84 | <0.001 |
| Insulin (μU/mL) | 6.90 | 6.42 | 6.74 | 6.94 | 7.19 | 5.32 | 0.016 |
| Triglyceride (mmol/L) | 1.76 | 1.51 | 1.78 | 1.50 | 1.72 | 1.52 | 0.183 |
| Cholesterol (mmol/L) | 4.69 | 0.95 | 4.80 | 0.98 | 4.49 | 0.86 | <0.001 |
| High-density lipoprotein (mmol/L) | 1.40 | 0.35 | 1.44 | 0.34 | 1.33 | 0.36 | <0.001 |
| Low-density lipoprotein (mmol/L) | 2.52 | 0.75 | 2.57 | 0.76 | 2.41 | 0.72 | <0.001 |
| Blood uric acid (μmol/L) | 307.57 | 84.66 | 311.71 | 85.13 | 299.99 | 83.27 | <0.001 |
| C-reactive protein (mg/L) | 1.50 | 3.46 | 1.59 | 3.60 | 1.35 | 3.17 | 0.021 |
*The variable sample size varied due to those participants did not donate blood samples.
†Comparison between the urban and rural participants, Student’s t-test for continuous variables and χ2 test for categorical variables. HbA1c, haemoglobin A1c.