Multivariate adjustment using the Poisson model for emergency care, hospitalisation and intensive unit care admission
| Variables | PR | 95% CI | P value* |
| Emergency care | |||
| Diabetes | |||
| No | 1.00 | – | |
| Yes | 1.38 | 1.11 to 1.73 | 0.004 |
| Kidney disease | |||
| No | 1.00 | – | |
| Yes | 1.36 | 1.05 to 1.77 | 0.020 |
| Oral GC | |||
| No | 1.00 | – | |
| Yes | 1.49 | 1.21 to 1.85 | <0.001 |
| Intravenous GC | |||
| No | 1.00 | – | |
| Yes | 1.38 | 1.14 to 1.67 | 0.001 |
| Hospitalisation | |||
| Age | |||
| Up to 50 | 1.00 | – | – |
| >50 | 1.89 | 1.26 to 2.85 | 0.002 |
| TNFi | |||
| No | 2.51 | 1.16 to 5.45 | 0.020 |
| Yes | 1.00 | – | – |
| Intravenous GC | |||
| No | 1.00 | – | – |
| Yes | 2.50 | 1.59 to 3.92 | <0.001 |
| Intensive care unit admission | |||
| Oral GC | |||
| No | 1.00 | – | – |
| Yes | 2.24 | 1.36 to 3.71 | 0.002 |
| Intravenous GC | |||
| No | 1.00 | – | – |
| Yes | 1.65 | 1.0 to 2.68 | 0.043 |
| SLE | |||
| No | 1.00 | – | |
| Yes | 1.72 | 1.04 to 2.88 | 0.036 |
*P value of the Wald test
PR, prevalence ratio; TNFi, tumour necrosis factor inhibitor; GC, glucocorticoids; SLE, systemic lupus erythematosus.