Clinical and Diagnostic Considerations for Atypical, Adult Onset Presentation of Chronic Recurrent Multifocal Osteomyelitis (CRMO)

Table 2

Score coefficient calculation for NBO diagnosis.

Risk factor	Score coefficient
Normal blood cell count	13
Symmetric lesions	10
Lesions with marginal sclerosis	10
Normal body temperature	9
Vertebral, clavicular, or sternal lesions	8
Radiologically proven lesions ≥2	7
CRP ≥1 mg/dl	6
Total clinical score	63

Optimal multivariable logistic regression model for calculating the clinical score for a diagnosis of nonbacterial osteitis from Jansson et al. [14]. Risk factors were included if the regression coefficient was statistically significant (). The total clinical score is the sum of score coefficients not equal to zero, with a range of 0–63.