Characteristics of patients with gout by SUA level.
| Characteristics | < 6 mg/dl, n = 633 | SUA Level 6-8.99 mg/dl, n = 1,173 | ≥ 9 mg/dl, n = 431 | p* | Total, n = 2,237 |
|---|---|---|---|---|---|
| Demographics | |||||
| Age, mean yrs (SD) | 72.3 (4.5) | 72.4 (4.4) | 72.7 (4.2) | 0.399 | 72.4 (4.4) |
| Male, % | 71.4 | 75.4 | 75.9 | 0.126 | 74.4 |
| Region, % | 0.232 | ||||
| New England | 0.2 | 0.3 | 0.5 | 0.3 | |
| Atlantic (mid and south) | 95.1 | 93.4 | 91.2 | 93.5 | |
| Pacific/Mountain | 0.2 | 0.1 | 0.2 | 0.1 | |
| National | 4.6 | 6.1 | 7.9 | 6.0 | |
| Other | 0.0 | 0.2 | 0.2 | 0.1 | |
| Prior comorbidities, % | |||||
| Hypertension | 66.8 | 71.2 | 78.0 | 0.000 | 71.3 |
| Diabetes | 20.5 | 21.1 | 23.4 | 0.491 | 21.4 |
| Hyperlipidemia | 40.3 | 38.5 | 36.4 | 0.445 | 38.6 |
| Renal impairment | 11.1 | 12.7 | 26.0 | < 0.001 | 14.8 |
| Rheumatoid arthritis | 3.8 | 3.0 | 1.9 | 0.191 | 3.0 |
| Lupus | 0.0 | 0.2 | 0.0 | 0.436 | 0.1 |
| Deyo-Charlson comorbidity index, mean (SD) | 1.0 (1.5) | 1.0 (1.6) | 1.4 (1.9) | < 0.001 | 1.1 (1.6) |
↵* p values for significant differences in percentages across the 3 SUA levels based on chi-square tests; p values for differences by age and comorbidity index across the 3 SUA levels based on ANOVA.