Table 2.
Characteristics of patients of Group A and Group B
| Characteristics | Group A | Group B | p-values | |||||
|---|---|---|---|---|---|---|---|---|
|
|
|
|
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| Staphylococcus aureus (n=39) | CoNS (n=50) | S. aureus (n=4) | CoNS (n=16) | S. aureus vs CoNS | Group A vs Group B | |||
|
| ||||||||
| n | n | n | n | Group A | Group B | CoNS | ||
| Gender | Male | 20 | 23 | 1 | 9 | 0.150 | 0.248 | 0.176 |
| Female | 19 | 27 | 3 | 7 | ||||
| Age (years) | Mean (SD) | 65.7 (13.9) | 65.0 (12.3) | 55.5 (17.8) | 61.3 (16.3) | 0.810 | 0.557 | 0.327 |
| Range | 30–85 | 29–84 | 31–71 | 19–87 | ||||
| Joint | Hip | 24 | 26 | 3 | 9 | 0.126 | 0.331 | 0.221 |
| Knee | 15 | 23 | 1 | 8 | ||||
| ESR (mm/hr) | Mean (SD) | 58.6 (25) | 34.5 (24.5) | 24.5 (/17.8) | 24.5 (17.8) | 0.002 | 0.266 | 0.209 |
| >30 mm/hr | 28 | 20 | 0 | 4 | 0.016 | 0.484 | 0.202 | |
| Range | 5–100 | 7–99 | 3–26 | 5–55 | ||||
| CRP (mg/L) | Mean (SD) | 52.4 (51.5) | 28.3 (3.65) | 2.18 (1.45) | 3.07 (2.7) | 0.087 | 0.536 | 0.174 |
| >10 mg/L | 34 | 26 | 0 | 0 | <0.001 | 1.000 | <0.011 | |
| Range | 3.2–255 | 0.5–485 | 0.3–3.5 | 0.8–9.9 | ||||
Abbreviations: CoNS, coagulase-negative staphylococci; ESR, erythrocyte sedimentation rate; CRP, C-reactive protein.