Table 2.
Prevalence of SCA according to quartiles of SUA levels.
| Quartiles of SUA (N = 1,534) | ||||||
|---|---|---|---|---|---|---|
| Total | Q1 (N = 389) | Q2 (N = 381) | Q3 (N = 384) | Q4 (N = 380) | P-value | |
| SUA, μmol/L | 397.70 ± 87.85 | 296.37 ± 38.86 | 366.34 ± 24.65 | 418.93 ± 26.26 | 511.40 ± 58.49 | <0.001 |
| SCA, N (%) | 1,317 (85.9) | 307 (78.9) | 318 (83.5) | 342 (89.1) | 350 (92.1) | <0.001 |
| Number of SCA sites, N (%) | ||||||
| 0 | 217 (14.1) | 82 (21.1) | 83 (16.5) | 42 (10.9) | 30 (7.9) | <0.001 |
| 1 | 275 (17.9) | 80 (20.6) | 67 (17.6) | 65 (16.9) | 63 (16.6) | |
| 2 | 327 (21.3) | 87 (22.4) | 67 (17.6) | 89 (23.2) | 84 (22.1) | |
| ≥3 | 715 (46.6) | 140 (36.0) | 184 (48.3) | 188 (49.0) | 203 (53.4) | |
| Distribution of SCA, N (%) | ||||||
| Carotid artery | 792 (51.6) | 157 (40.4) | 202 (53.0) | 215 (56.0) | 218 (57.4) | <0.001 |
| Coronary artery | 848 (55.3) | 158 (40.6) | 208 (54.6) | 215 (56.0) | 267 (70.3) | <0.001 |
| Thoracic aorta | 1,135 (74.0) | 273 (70.2) | 272 (71.4) | 290 (75.5) | 300 (78.9) | 0.022 |
| Renal artery | 702 (45.8) | 147 (37.8) | 174 (45.7) | 199 (51.8) | 182 (47.9) | 0.001 |
| Severity of arterial stenosis | ||||||
| Carotid artery, N (%) | ||||||
| Normal | 743 (48.4) | 232 (59.6) | 179 (47.0) | 169 (44.0) | 163 (42.9) | <0.001 |
| Minimal | 763 (49.7) | 152 (39.1) | 198 (52.0) | 207 (53.9) | 206 (54.2) | |
| Mild-severe | 28 (1.8) | 5 (1.3) | 4 (1.0) | 8 (2.1) | 11 (2.9) | |
| Coronary artery, N (%) | ||||||
| Normal | 686 (44.7) | 231 (59.4) | 173 (45.4) | 169 (44.0) | 113 (29.7) | <0.001 |
| Minimal | 539 (35.1) | 117 (30.1) | 145 (38.1) | 126 (32.8) | 151 (39.7) | |
| Mild | 168 (11.0) | 32 (8.2) | 34 (8.9) | 49 (12.8) | 53 (13.9) | |
| Moderate-severe | 141 (9.2) | 9 (2.3) | 29 (7.6) | 40 (10.4) | 63 (16.6) | |
| Thoracic aorta, N (%) | ||||||
| Normal | 399 (26.0) | 116 (29.8) | 109 (28.6) | 94 (24.5) | 80 (21.1) | 0.043 |
| Minimal | 1,120 (73.0) | 269 (69.2) | 268 (70.3) | 289 (75.3) | 294 (77.4) | |
| Mild-severe | 15 (1.0) | 4 (1.0) | 4 (1.0) | 1 (0.3) | 6 (1.6) | |
| Renal artery, N (%) | ||||||
| Normal | 832 (54.2) | 242 (62.2) | 207 (54.3) | 185 (48.2) | 198 (52.1) | 0.003 |
| Minimal | 370 (24.1) | 89 (22.9) | 102 (26.8) | 96 (25.0) | 83 (21.8) | |
| Mild | 248 (16.2) | 47 (12.1) | 56 (14.7) | 74 (19.3) | 71 (18.7) | |
| Moderate | 46 (3.0) | 5 (1.3) | 10 (2.6) | 16 (4.2) | 15 (3.9) | |
| Severe | 38 (2.5) | 6 (1.5) | 6 (1.6) | 13 (3.4) | 13 (3.4) | |
Data were presented as mean ± SD for continuous variable and number (percentage) for categorical variables. SUA, serum uric acid; SCA, subclinical atherosclerosis.