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Table 1 Clinical characteristics of the patient cohorts

From: Exploring the arthritogenicity of Streptococcus dysgalactiae subspecies equisimilis

Clinical characteristic OAI
n = 29
Non-OAI
n = 24
P-value
Demography
 Age, median (IQR) 67 (49–81) 80 (65–89) 0.06
 Male sex 20 (68%) 8 (33%) 0.01
Systemic comorbidity
 CCI, median (IQR) 1 (0–3) 2 (1–4) 0.004
 Chronic organ failure 10 (34%) 12 (50%) 0.28
 Diabetes 4 (14%) 3 (13%) 1.0
 Active Malignancy 3 (10%) 5 (21%) 0.44
 Immunosuppression 3 (10%) 7 (29%) 0.16
Local risk factors
 Orthopaedic implant 9 (31%) 16 (67%) 0.01
 Pre-existing joint disease 5 (17%) 10 (42%) 0.07
 Surgical proc. <  4 weeks 7 (24%) 1 (4%) 0.06
 Previous septic arthritis 8 (28%) 2 (8%) 0.09
  1. OAI Osteoarticular infection, CCI Charlson comorbidity Index, IQR Inner quartile range; Surgical proc. < 4 weeks, invasive joint procedure performed within 4 weeks prior to admission. Chronic organ failures included any of cardiac, renal, respiratory and hepatic failures. All data presented as n (% of cases), except Age and CCI, presented as median (IQR). Significant P-values are highlighted in bold