Table 3.
Incidence rate for COVID-19 admissions and deaths in patients with EIA using single failure Cox model
| Variable | All EIA | RA | PsA | axSpA | Undifferentiated arthritis | Other |
|---|---|---|---|---|---|---|
| COVID-19 admissions | ||||||
| Total patients | 14 007 | 9729 | 1804 | 272 | 1661 | 541 |
| n | 143 | 104 | 11 | 2 | 19 | 7 |
| PY | 15291.89 | 10611.01 | 1961.69 | 298.67 | 1828.88 | 591.64 |
| IR (95% CI) per 100 PY | 0.93 (0.79, 1.10) | 0.98 (0.80, 1.18) | 0.56 (0.31, 1.01) | 0.66 (0.16, 2.67) | 1.03 (0.66, 1.62) | 1.18 (0.56, 2.48) |
| COVID-19 deaths | ||||||
| Total patients | 14 007 | 9729 | 1804 | 272 | 1661 | 541 |
| n | 47 | 36 | 1 | 0 | 5 | 5 |
| PY | 15 295.43 | 10 613.52 | 1961.82 | 298.67 | 1829.45 | 591.97 |
| IR (95% CI) per 100 PY | 0.30 (0.23, 0.40) | 0.33 (0.24, 0.47) | 0.05 (0.00, 0.36) | 0 (0, 0.01) | 0.27 (0.11, 0.65) | 0.84 (0.35, 2.03) |
Incidence rates of COVID-19 hospital admissions and deaths in patients diagnosed with EIA in England. EIA: early inflammatory arthritis; COVID-19: coronavirus disease 2019; IR: incidence rate; n: number of patients with COVID-19 outcome; PY: person years.