From: Temporal trends of β-haemolytic streptococcal osteoarticular infections in western Norway
GAS n = 24 | GBS n = 45 | GCGS n = 40 a | GAS vs GBS | GAS vs GCGS | GBS vs GCGS | ||||
---|---|---|---|---|---|---|---|---|---|
Demographics | Adjusted p-values * | ||||||||
Male sex | 15 | 63 % | 21 | 47 % | 25 | 63 % | 0.62 | 1.0 | 0.95 |
Age Median (IQR) | 48 | (8–72) | 70 | (58–80) | 69 | (49–81) | 0.007 | 0.049 | 1.0 |
Disease manifestation | |||||||||
AOM | 5 | 21 % | 11 | 24 % | 4 | 10 % | 1.0 | 1.0 | 0.6 |
Vertebral AOM | 0 | 7 | 3 | ||||||
Peripheral AOM | 5 | 4 | 1 | ||||||
PJI | 5 | 21 % | 22 | 49 % | 15 | 38 % | 0.148 | 1.0 | 1.0 |
Early PJI | 2 | 6 | 2 | ||||||
Delayed PJI | 3 | 6 | 5 | ||||||
Late PJI | 0 | 10 | 8 | ||||||
NJI | 14 | 58 % | 12 | 27 % | 21 | 53 % | 0.049 | 1.0 | 0.11 |
Affected joint | |||||||||
Hip | 4 | 21 % | 15 | 44 % | 9 | 25 % | |||
Knee | 8 | 42 % | 8 | 24 % | 15 | 42 % | |||
Ankle | 2 | 11 % | 1 | 3 % | 3 | 8 % | |||
Shoulder | 0 | 0 % | 1 | 3 % | 4 | 11 % | |||
Other | 7 | 37 % | 6 | 18 % | 11 | 31 % | |||
Multiple joints | 0 | 0 % | 5 | 15 % | 1 | 3 % | |||
Microbiological cultures | |||||||||
Blood | 14 | 58 % | 25 | 56 % | 13 | 33 % | |||
Synovial Fluid | 14 | 58 % | 11 | 24 % | 23 | 58 % | |||
Tissue | 1 | 4 % | 12 | 27 % | 8 | 20 % | |||
Polymicrobial b | 3 | 13 % | 2 | 4 % | 4 | 10 % | |||
Comorbidity and risk factors | |||||||||
Systemic risk factor | 10 | 42 % | 37 | 82 % | 23 | 58 % | 0.005 | 1.0 | 0.1 |
Diabetes | 3 | 13 % | 10 | 22 % | 5 | 13 % | |||
Chr. Org. failure | 6 | 25 % | 29 | 64 % | 15 | 38 % | |||
Active malignancy | 1 | 4 % | 8 | 18 % | 5 | 13 % | |||
Immunosuppress | 1 | 4 % | 2 | 4 % | 4 | 10 % | |||
IVDU | 2 | 8 % | 0 | 0 % | 5 | 13 % | |||
Local risk factor | 10 | 42 % | 29 | 64 % | 29 | 73 % | 0.21 | 0.084 | 1.0 |
Rheum. joint dis. | 0 | 0 % | 4 | 9 % | 6 | 15 % | |||
Prior SA | 5 | 21 % | 5 | 11 % | 10 | 25 % | |||
Prosthesis | 5 | 21 % | 22 | 49 % | 15 | 38 % | |||
Surg proc < 4 weeks | 4 | 17 % | 9 | 20 % | 10 | 25 % | |||
Any risk factor | 15 | 63 % | 41 | 91 % | 37 | 93 % | 0.046 | 0.048 | 1.0 |