Chronic back pain in first-degree relatives (FDRs) of patients with ankylosing spondylitis: predictive value of HLA-B27 and persistence of inflammatory back pain over time.

RMD Open · 2020 · PMC7856153 · PMID 33243782

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a nonsignificant trendno p-value reported

They were also more likely to be male, in comparison to those with NICBP, and a nonsignificant trend was seen comparing those with CIBP with those without.

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