Table 4.

Diagnostic Value (95% Confidence Interval) of “Red Flags” and Other Determinants for Vertebral Fractures (N=33) in Participants Aged >55 Years With Back Pain (N=669)^{^a}

↵^a Missing values ranged from 0% to 8%. PV+=positive predictive value, PV−=negative predictive value, LR+=positive likelihood ratio, LR−=negative likelihood ratio. Prior probability=.05.
^b Oral or inhalation corticosteroid use of >90 d.
^c Measured with the Roland-Morris Disability Questionnaire (range=0–24)²⁴; >17 indicated severe disability.
^d Included in the model: osteoporosis, age of ≥75 years, trauma, back pain intensity score of ≥7, and thoracic pain. Area under the curve=0.78 (range=0.69–0.87).