Table 1 The demographics and clinical characteristics in GBS and other bacterial septic arthritis group
Variable | All (231) | GBS group (87) | Other bacterial group (144) | p-value |
|---|---|---|---|---|
Female (n, %) | 86, 37.2% | 36, 41.4% | 50, 34.7% | 0.311 |
Age mean: (mean ± SD) | 60.8 + 17.3 | 58.6 + 16.1 | 62.2 + 18.0 | 0.136 |
Body Mass Index: Median (IQR 25-IQR75) | 23.4 (20.8–25.8) | 23.0 (21.1–25.0) | 23.4 (20.8–26.4) | 0.608 |
Season (n, %) | ||||
Summer | 47, 20.3% | 11, 12.6% | 36, 25.0% | 0.024 |
Rainy | 130, 56.3% | 62, 71.3% | 68, 47.2% | < 0.001 |
Winter | 54, 23.4% | 14,16.1% | 40, 27.8% | 0.042 |
Underlying disease (n, %) | 183, 79.2% | 58, 66.7% | 125, 86.8% | < 0.001 |
Rheumatoid arthritis | 5, 2.2% | 1, 1.1% | 4, 2.8% | 0.653 |
Diabetic mellitus | 71, 30.7% | 16, 18.4% | 55, 38.2% | 0.002 |
ESRD (n, %) | 12, 5.2% | 2, 2.3% | 10, 6.9% | 0.219 |
Liver disease | 30, 13.0% | 4, 4.6% | 26, 18.1% | 0.003 |
Malignancy | 28, 12.1% | 9, 10.3% | 19, 13.2% | 0.520 |
Hypertension | 110, 47.6% | 40, 46.0% | 70, 48.6% | 0.698 |
Hyperlipidemia | 77, 33.3% | 30, 34.5% | 47, 32.6% | 0.773 |
History of joint infection (n, %) | 7, 3.0% | 0, 0% | 7, 4.9% | 0.047 |
History skin infection (n, %) | 30, 13.0% | 1, 1.1% | 29, 20.1% | < 0.001 |
History of joint surgery (n, %) | 4, 1.7% | 1, 1.1% | 3, 2.1% | 1.000 |
History of intraarticular steroid injection (n, %) | 7, 3.0% | 0, 0% | 7, 4.9% | 0.047 |
Current medication (n, %) | ||||
Prednisolone | 20, 8.7% | 4, 4.6% | 16, 11.1% | 0.088 |
Chemotherapy | 8, 3.5% | 2, 2.3% | 6, 4.2% | 0.363 |
Immunosuppressive drug | 9, 3.9% | 2, 2.3% | 7, 4.9% | 0.489 |