Characteristics of emergency and inpatient attendances for gout flares at 2 hospitals in London, UK, from January 1, 2017, to December 31, 2020.
| Total N = 1220 | ED n = 933 | Inpatient n = 287 | |
|---|---|---|---|
| Age, yrs | 59 (17) | 55 (16) | 71 (16) |
| Sex | |||
| Female | 225 (18.4%) | 145 (15.5%) | 80 (27.9%) |
| Male | 995 (81.6%) | 788 (84.5%) | 207 (72.1%) |
| Location | |||
| Hospital A | 1018 (83.4%) | 829 (88.9%) | 189 (65.9%) |
| Hospital B | 202 (16.6%) | 104 (11.1%) | 98 (34.1%) |
| ED arrival time | |||
| 9 AM to 9 PM | 835 (68.4%) | 685 (73.4%) | 150 (52.3%) |
| 9 PM to 9 AM | 385 (31.6%) | 248 (26.6%) | 137 (47.7%) |
| ED arrival day | |||
| Mon–Fri | 900 (73.8%) | 680 (72.9%) | 220 (76.7%) |
| Sat–Sun | 320 (26.2%) | 253 (27.1%) | 67 (23.3%) |
| Serum urate, μmol/L | 478 (137) | 464 (119) | 508 (166) |
| CRP, mg/L | 66.1 (78.0) | 40.5 (52.9) | 109.8 (93.1) |
| White cell count, × 109/L | 9.0 (3.0) | 8.6 (2.5) | 9.9 (3.5) |
| Neutrophil count, × 109/L | 6.3 (2.7) | 5.8 (2.3) | 7.4 (3.2) |
| Lymphocyte count, × 109/L | 1.8 (0.8) | 2.0 (0.8) | 1.6 (0.7) |
| Serum creatinine, μmol/L | 127 (104) | 116 (86) | 148 (129) |
Data for ED-only attendances and attendances requiring inpatient admission are shown in separate columns. For this table, patients could contribute multiple attendances; limiting to just the first attendance made no meaningful difference to patterns. For laboratory data, the result of the first test performed during the attendance was captured for analysis. Data are presented as mean (SD) for continuous measures, and n (%, by column) for categorical measures. ED: emergency department; CRP: C-reactive protein.