Fig. 2: Positive (PPV) and negative predictive values (NPV) of PRS and HLA-B27 for AS [24]. | Genes & Immunity

Fig. 2: Positive (PPV) and negative predictive values (NPV) of PRS and HLA-B27 for AS [24].

From: Progress in the genetics of uveitis

Fig. 2

Positive (PPV) and negative predictive values (NPV) of Polygenic Risk Scores (PRS) and HLA-B27 for ankylosing spondylitis (AS). The prevalence of AS is assumed to be 30%, the likely prevalence of AS amongst patients <45 years of age attending outpatient services with chronic back pain lasting >3 months.

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