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Diagnostic accuracy of composite index tests for partial and complete ACL injury in primary care. Legend: Thresholds: +LR <5 and -LR >0.2 = small; +LR 5–10 and; −LR 0.1–0.2 = moderate and +LR >10 and -LR <1 = large. Guide for interpretation: Greater distance between the –LR and +LR symbols for the test indicates better diagnostic performance.
