Table 2.
Comparison of baseline characteristics according to WBC quartile
| WBC quartiles |
|||||
|---|---|---|---|---|---|
| Characteristics | Q1 | Q2 | Q3 | Q4 | p Value |
| N (%) | 3769 | 3825 | 3809 | 3798 | |
| Age | 42.33±14.34 | 42.79±15.02 | 43.12±14.86 | 43.54±15.64 | 0.004 |
| BMI (kg/m2) | 22.78±2.89 | 23.35±3.10 | 23.81±3.11 | 24.18±3.19 | <0.001 |
| SBP (mm Hg) | 117.73±17.48 | 120.44±18.64 | 121.86±18.94 | 123.88±19.86 | <0.001 |
| DBP (mm Hg) | 69.49±10.46 | 71.13±10.75 | 72.00±10.94 | 72.92±11.25 | <0.001 |
| FPG (mmol/L) | 4.91±0.81 | 4.98±0.93 | 5.04±0.98 | 5.10±1.06 | <0.001 |
| TC (mmol/L) | 4.84±0.94 | 4.88±0.94 | 4.92±0.93 | 4.94±0.94 | <0.001 |
| TG (mmol/L) | 0.86 (0.67) | 0.97 (0.80) | 1.06 (0.82) | 1.19 (0.94) | <0.001 |
| HDL-C (mmol/L) | 1.41 (0.43) | 1.36 (0.44) | 1.33 (0.43) | 1.29 (0.43) | <0.001 |
| LDL-C (mmol/L) | 2.69±0.72 | 2.76±0.73 | 2.80±0.72 | 2.85±0.73 | <0.001 |
| TP (g/L) | 73.38±4.24 | 73.74±4.23 | 73.96±4.29 | 74.25±4.38 | <0.001 |
| ALB (g/L) | 46.28±2.54 | 46.36±2.56 | 46.38±2.46 | 46.38±2.62 | 0.287 |
| GLO (g/L) | 27.10±3.92 | 27.38±4.01 | 27.58±4.01 | 27.87±4.01 | <0.001 |
| Hypertension (%) | 539 (14.3) | 683 (17.9) | 772 (20.3) | 877 (23.1) | <0.001 |
| Hyperglycaemia (%) | 197 (5.2) | 263 (6.9) | 298 (7.8) | 352 (9.3) | <0.001 |
| Current smoker (%) | 372 (9.9) | 481 (12.6) | 555 (14.6) | 781 (20.6) | <0.001 |
| Regular exercise (%) | 1169 (31.0) | 1194 (31.2) | 1197 (31.4) | 1152 (30.3) | 0.839 |
Q1: WBC <5.35; Q2: 5.35 ≤WBC <6.20; Q3: 6.20 ≤WBC <7.14; Q4: WBC ≥7.14 cells×109/L.
ALB, albumin; BMI, body mass index; DBP, diastolic blood pressure; FPG, fasting plasma glucose; GLO, globin; HDL-C, high-density lipoprotein cholesterol; LDL-C, low-density lipoprotein cholesterol; SBP, systolic blood pressure; TC, total cholesterol; TG, triglyceride; TP, serum total protein; WBC, white blood cell count.