Suicidality in civilian women with PTSD: Possible link to childhood maltreatment, proinflammatory molecules, and their genetic variations

•We examined an association of suicidality with inflammatory markers in PTSD women.•We also explored effects of inflammatory gene polymorphisms on suicidality in PTSD.•Suicidality in PTSD was associated with elevated blood levels of hsCRP and IL-6.•Polymorphisms of CRP rs2794520 and IL6 rs1800796 affected suicidality in PTSD.•These polymorphisms predicted suicidality in PTSD in a multivariate regression model.