Table 1 Demographic features of those with invasive pneumococcal disease and septic arthritis and those with IPD but without septic arthritis
Septic Arthritis | No Septic Arthritis | Unadjusted P-value | |
Number | 51 (1.6) | 3200 (98.4) | |
Male | 35 (68.6) | 1803 (56.3) | 0.08 |
Mean age (SD) | 56.3 (17) | 54.6 (17.4) | 0.44 |
Aboriginal | 9 (17.6) | 421 (13.2) | 0.35 |
Homeless | 2 (4) | 232 (7.3) | 0.12 |
Current tobacco smoker | 23 (45.1) | 1444 (45.1) | 0.99 |
Illicit drug use | 9 (17.6) | 550 (17.2) | 0.93 |
Alcoholism | 14 (27.5) | 771 (24.1) | 0.58 |
Functional status in week prior to hospital admission | |||
Walking without assistance | 38 (74.5) | 2738 (85.6) | 0.027 |
Co-morbid illness those with invasive pneumococcal disease and septic arthritis and those with IPD but without septic arthritis | |||
Any Comorbidity | 48 (94.1) | 2738 (85.6) | 0.83 |
Cancer in past 5 years | 5 (9.8) | 399 (12.5) | 0.57 |
Solid organ transplant | 0 | 18 (0.6) | 1.00 |
Bone Marrow Transplant | 1 (2) | 36 (1.1) | 0.45 |
Rheumatoid arthritis | 5 (9.8) | 73 (2.3) | 0.007 |
Osteoarthritis | 9 (17.6) | 206 (6.4) | 0.001 |
Gout | 1 (2) | 28 (0.8) | 0.37 |
Pseudogout | 1 (2) | 1 (0.03) | 0.03 |
Past myocardial infarction | 1 (2) | 203 (6.3) | 0.37 |
Diabetes | 3 (5.9) | 193 (6.0) | 0.97 |
HIV | 0 | 136 (4.3) | 0.27 |
COPD | 2 (3.9) | 562 (17.6) | 0.01 |
Splenectomy | 2 (3.9) | 49 (1.5) | 0.17 |