Table 1.
Demographic information of the patients
| P-value | Group B (n=76) | Group A (n=29) | Variables | |
|---|---|---|---|---|
| 0.072 | 49.24±19.30 | 41.72±21.83 | Age | |
| 0.429 | 38 (50) | 12 (41.4) | Men | Gender |
| 38 (50) | 17 (58.6) | Women | ||
| <0.001* | 37.41±20.97 | 338.11±1479.99 | SyWBC (cells/mm 3 ) | |
| 0.188 | 12.45±3.28 | 14.04±4.51 | SWBC (cells/mm 3 ) | |
| <0.001* | 55.51±23.74 | 80.51±6.71 | PMN (%) | |
| <0.001* | 49.96±18.71 | 33.31±10.84 | Sy-G (mmol/L) | |
| 0.37 | 89.37±19.91 | 93.83±22.59 | SE-G (mmol/L) | |
| <0.001* | 32.67±24.43 | 89.89±24.62 | ESR (mm/hour) | |
| <0.001* | 36.31±26.39 | 68.72±31.68 | CRP (mg/L) | |
| <0.001* | 74.40±62.84 | 172.58±56.68 | TOA | |
| <0.001* | 43 (56.58) | - | Negative | LET |
| 4 (5.26) | - | 1+ | ||
| 29 (38.2) | 29 (100) | 2+ | ||
| <0.001* | 35 (46.1) | 26 (89.7) | Negative | GT |
| 40 (25.6) | - | 1+ | ||
| 1 (1.3) | 3 (10.3) | 2+ | ||
| 0.013* | 14 (18.42) | - | Positive | BC |
| 62 (81.58) | 29 (100) | Negative | ||
| 0.314 | 26 (33.2) | 13 (44.8) | Positive | GS |
| 50 (65.8) | 16 (55.2) | Negative | ||
| 0.040* | 10 (13.16) | - | Positive | SC |
| 66 (86.84) | 29 (100) | Negative | ||
| <0.001* | 36 (47.37) | 28 (96.55) | Positive | UDSA |
| 40 (52.63) | 1 (3.45) | Negative | ||
Data are expressed as mean ± SD or numbers (%).
The t-test was used for continuous data and the Chi-square test for qualitative data.
*P<0.05 is considered as a significant level.
SyWBC: Synovial fluid white blood cell count×1000/l; PMN: Polymorphonuclear cell percentage; Sy-sE G: Synovial fluid-concomitant serum glucose mg/dl; SWBC: Serum white blood cell count; ESR: Erythrocyte sedimentation rate; CRP: C-reactive protein; PAb: Previous antibiotic use; TOA: Time of aspiration after beginning of symptoms; LET: Leukocyte esterase test; GT: Glucose esterase test; DM: Diabetes mellitus; BC: Blood culture; GS: Gram stain; SC: Serum culture; UDSA: Ultimate diagnosis of septic arthritis