Table 2.
Results of 30-day and 90-day all-cause mortality following hospitalisation for pneumonia in patients with and without rheumatoid arthritis (RA)
| All pneumonia patients | Pneumonia patients with chronic lung disease | Pneumonia patients without chronic lung disease | ||||
| RA | Non-RA | RA | Non-RA | RA | Non-RA | |
| N | 1220 | 51 357 | 291 (23.9) | 10 428 (20.3) | 929 (76.1) | 40 914 (79.7) |
| 30-day mortality | 165 (13.5%) | 6521 (12.7%) | 37 (12.7) | 1335 (12.8) | 128 (13.8) | 5186 (12.7) |
| 90-day mortality | 243 (19.9%) | 9679 (18.9%) | 62 (21.3) | 2118 (20.3) | 181 (19.5) | 7561 (18.5) |
| Crude 30-day HR | 1.07 (0.92 to 1.25) | 1.00 (ref) | 1.00 (0.72 to 1.39) | 1.00 (ref) | 1.10 (0.92 to 1.30) | 1.00 (ref) |
| Adjusted 30-day HR* | 1.06 (0.91 to 1.24) | 1.00 (ref) | 1.04 (0.75 to 1.46) | 1.00 (ref) | 1.07 (0.90 to 1.28) | 1.00 (ref) |
| Crude 90-day HR | 1.07 (0.94 to 1.21) | 1.00 (ref) | 1.06 (0.82 to 1.36) | 1.00 (ref) | 1.07 (0.92 to 1.23) | 1.00 (ref) |
| Adjusted 90-day HR* | 1.05 (0.92 to 1.19) | 1.00 (ref) | 1.11 (0.86 to 1.42) | 1.00 (ref) | 1.03 (0.89 to 1.19) | 1.00 (ref) |
HRs with 95% CI were calculated using a Cox proportional hazards model.
*Adjusted for sex, age, level of comorbidity, alcoholism and antibiotic use before admission.