Table 1 Baseline characteristics of each group by age
From: Relationship between uric acid and blood pressure in different age groups
| Variable | Total ( n = 45,098) | <40 years ( n = 28,864) | 40–59 years ( n = 13,118) | ≥60 years ( n = 3,116) | p value |
|---|---|---|---|---|---|
| Male | 24,031 (53.3) | 15,212 (52.7) | 7,089 (54.0) | 1,730 (55.5) | <0.001 |
| Age (years) | 39.0 ± 11.6 | 31.7 ± 4.9 | 48.7 ± 5.5 | 65.0 ± 4.2 | <0.001 |
| Height (cm) | 165.6 ± 8.7 | 167.2 ± 8.5 | 163.5 ± 8.3 | 160.0 ± 8.6 | <0.001 |
| Weight (kg) | 63.9 ± 12.6 | 64.3 ± 13.7 | 63.7 ± 10.2 | 60.5 ± 9.5 | <0.001 |
| Body mass index (kg/m2) | 23.2 ± 3.4 | 22.9 ± 3.7 | 23.7 ± 2.8 | 23.6 ± 2.9 | <0.001 |
| Systolic blood pressure (mmHg) | 117.1 ± 13.9 | 114.7 ± 12.8 | 120.2 ± 14.2 | 126.6 ± 15.3 | <0.001 |
| Diastolic blood pressure (mmHg) | 72.3 ± 9.5 | 70.8 ± 8.9 | 74.8 ± 9.9 | 76.3 ± 9.7 | <0.001 |
| Uric acid (mg/dL) | 5.2 ± 1.5 | 5.3 ± 1.5 | 5.1 ± 1.4* | 5.1 ± 1.3* | <0.001 |
| Fasting blood sugar (mg/dL) | 91.3 ± 17.7 | 89.3 ± 14.6 | 94.4 ± 20.1 | 96.6 ± 21.4 | <0.001 |
| Estimated glomerular filtration rate (mL/min/1.73 m2) | 88.0 ± 27.1 | 91.2 ± 28.0 | 83.1 ± 24.6 | 78.4 ± 23.4 | <0.001 |
| Total cholesterol (mg/dL) | 180.2 ± 33.8 | 174.2 ± 31.3 | 189.9 ± 33.7 | 194.4 ± 34.4 | <0.001 |
| High-density lipoprotein (mg/dL) | 52.0 ± 10.2 | 52.1 ± 10.0* | 51.8 ± 10.4† | 52.0 ± 10.4*,† | 0.046 |
| Triglyceride (mg/dL) | 105.6 ± 82.5 | 100.1 ± 62.2 | 115.4 ± 67.0 | 115.3 ± 60.0 | <0.001 |
| Low density lipoprotein (mg/dL) | 107.1 ± 29.3 | 102.3 ± 27.2 | 115.0 ± 30.7 | 117.3 ± 31.2 | <0.001 |
| Hypertension | 3,122 (6.9) | 1,144 (3.9) | 1,377 (10.5) | 601 (19.3) | <0.001 |
| Diabetes mellitus | 1,224 (2.7) | 344 (1.2) | 625 (4.8) | 255 (8.2) | <0.001 |
| Dyslipidemia | 10,073 (22.3) | 5,330 (18.5) | 3,752 (28.6) | 991 (31.8) | <0.001 |
| Hyperuricemia | 5,700 (12.6) | 4,104 (14.2) | 1,296 (9.9) | 300 (9.6) | <0.001 |