Characteristics of gout patients in CORRONA registry at time of enrollment by prophylaxis group. P values are from the 2-sample Student t test for continuous variables and the chi-square test of association for categorical variables, except where indicated with an asterisk. Values are n (%) unless otherwise specified.
| Characteristics | Receiving Prophylaxis, N = 441 | Not Receiving Prophylaxis, N = 608 | p |
|---|---|---|---|
| Sex, No | 439 | 606 | 0.195 |
| Male | 355 (80.9) | 470 (77.6) | |
| Age, yrs, No | 441 | 608 | |
| Mean ± SD | 63.2 ± 13.7 | 63.7 ± 13.1 | 0.614 |
| 36–45 | 49 (11.1) | 60 (9.9) | |
| 46–55 | 67 (15.2) | 94 (15.5) | |
| 56–65 | 121 (27.4) | 167 (27.5) | |
| 66+ | 204 (46.3) | 287 (47.2) | 0.932 |
| Race, No | 441 | 608 | |
| White | 382 (86.6) | 549 (90.3) | |
| African American | 25 (5.7) | 23 (3.8) | |
| Asian | 15 (3.4) | 13 (2.1) | |
| Other | 19 (4.3) | 23 (3.7) | 0.253 |
| Ethnicity, No | 363 | 490 | |
| Hispanic | 5 (1.4) | 9 (1.7) | 0.787* |
| Education, yrs, No | 434 | 598 | |
| ≤ 6 | 22 (5.1) | 27 (4.5) | |
| 7–12 | 143 (33.0) | 204 (34.1) | |
| > 12 | 268 (61.8) | 367 (61.4) | 0.874 |
| Work status, No | 440 | 603 | |
| Full-time | 176 (40.0) | 239 (39.6) | |
| Part-time | 19 (4.3) | 36 (6.0) | |
| Retired | 200 (45.5) | 271 (44.9) | |
| Other | 45 (10.2) | 57 (9.5) | 0.603 |
| Insurance, No** | 441 | 608 | |
| None | 6 (1.4) | 5 (< 1) | 0.541* |
| Private | 323 (73.2) | 438 (72.0) | 0.666 |
| Medicare | 193 (43.8) | 269 (44.2) | 0.877 |
| Medicaid | 0 (0.0) | 0 (0.0) | — |
| Marital status, No | 438 | 606 | |
| Single | 39 (8.9) | 68 (11.2) | |
| Married | 309 (70.6) | 436 (72.0) | |
| Partnered | 5 (1.1) | 6 (1.0) | |
| Widowed | 38 (8.7) | 43 (7.1) | |
| Separated | 3 (0.7) | 9 (1.5) | |
| Divorced | 44 (10.1) | 44 (7.3) | 0.303* |
| BMI, No | 411 | 584 | |
| Mean ± SD | 32.3 ± 7.0 | 32.2 ± 6.8 | 0.782 |
| Underweight, < 18.5 | 3 (0.7) | 4 (0.7) | |
| Normal, 18.5–24.9 | 29 (7.1) | 29 (7.1) | |
| Overweight, 25–29.9 | 141 (34.3) | 141 (34.3) | |
| Obesity Class 1, 30–34.9 | 122 (29.7) | 122 (29.7) | |
| Obesity Class 2/3, 35+ | 116 (28.2) | 116 (28.2) | 0.951* |
↵* P values from Fisher’s exact test.
↵** Sums may not add to 100% because of overlap in private and Medicare groups. N: total number of patients; No: number of patients with available data for each characteristic; n: number of patients with attribute out of No; %: percent of n out of No; CORRONA: COnsortium of Rheumatology Researchers Of North America; BMI: body mass index.