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Table 1 Demographic features of those with invasive pneumococcal disease and septic arthritis and those with IPD but without septic arthritis

From: Rates of, and risk factors for, septic arthritis in patients with invasive pneumococcal disease: prospective cohort study

  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