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Table 1 Study Characteristics

From: Red flags for the early detection of spinal infection in back pain patients

CharacteristicsTotalSum of papers
No. patients222440
Gender 39
 Male (%)1385 (62.3) 
 Female (%)773 (37.7) 
Age (mean ± SD) years55.4 (± 8.2)35
Data Collection Period (mean ± SD) years8 (± 4)40
Diagnostic Tests positive/performed (%)  
 Plain Radiograph599/773 (77.5)14
 MRI505/632 (80.0)22
CT Scan342/395 (86.6)15
 Bone Scan215/232 (92.7)11
 Gallium Scan65/72 (90.3)5
 Myelogram39/46 (84.5)3
 Ultrasound8/39 (20.5)3
 Laboratory tests*2322/3867 (60.0)33
 Surgery93/112 (83.0)6
World Bank Classification by income (%) 40
 High Income (HI)34 (85.0) 
 Upper Middle Income (UMI)6 (15.0) 
 Lower Middle Income (LMI)0 
 Lower Income (LI)0 
  1. *Tests included are white blood cell count (WBC), C-reactive protein (CRP) and erythrocyte sedimentation rate (ESR), pus culture, blood culture and biopsy