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Table 3 Multivariate analyses of factors associated with the GBS septic arthritis

From: Group B streptococcus is the most common pathogen for septic arthritis with unique clinical characteristics: data from 12 years retrospective cohort study

Parameter All (231) GBS group (87) Other bacterial group (144) Adjust odds 95% CI p-value
Associated jointsa
 MCP (n, %) 13, 5.6% 12, 13.8% 1, 0.7% 16.2 1.9–137.2 0.011
 PIP (n, %) 14, 6.1% 12, 13.8% 2, 1.4% 7.0 1.3–36.0 0.021
 Spine (n, %) 17, 7.4% 12, 13.8% 5, 3.5% 4.6 1.4–14.9 0.011
 SC (n, %) 28, 12.1% 19, 21.8% 9, 6.3% 3.2 1.2–8.2 0.017
Associated factorsb
 Tenosynovitis (n, %) 37, 16.0% 34, 39.08% 3, 2.08% 21.0 5.5–79.6 < 0.001
 Rainy season (n, %) 130, 56.3% 62, 71.3% 68, 47.2% 3.6 1.8–7.5 < 0.001
 Oligo-polyarthritis (n, %) 109, 47.2% 63, 72.4% 46, 31.9% 2.6 1.3–5.2 0.008
Associated laboratory datac
 Baseline hemoglobin (mg/dL): (mean ± SD) 11.0 + 2.2 11.7 + 2.4 10.5 + 2.1 1.3 1.1–1.5 < 0.001
  1. p < 0.05 defined statistical significance,
  2. GBS Streptococcus group B, MCP Metacarpophalangeal, PIP Proximal interphalangeal, SC Sternoclavicular
  3. aAdjusted for knee, ankle, shoulder, wrist, SC, elbow, spine, MCP, PIP, hip, AC, MTP, IP of toe and SI joints
  4. bAdjusted for age, gender, rainy season, body mass index, diabetic mellitus, end-stage renal disease, liver disease, oligo-polyarthritis, upper joint involvement, tenosynovitis, tendon rupture, ocular involvement and central nervous system involvement
  5. cAdjusted for baseline serum WBC, hemoglobin, creatinine, hs-CRP, AST and ALT