Study limitations in report of suicidal behavior among women with co-occurring PTSD and borderline personality disorder.

als with comorbid PTSD and borderline personality disorder had greater odds of lifetime suicide attempt compared to individuals with either condition alone (4). We have shown that individuals with co-occurring PTSD and borderline personality disorder have higher odds of having a suicide attempt than either disorder alone (3, 4). These findings are in contrast to the findings of Harned and col-leagues' study (1). We believe the discrepancy between the epidemiologic studies and the Harned et al. study is due to the differences in sample size. We note that epidemiologic studies cited above are limited by lack of assessment of lethal-ity of suicide attempts, a strength of Harned and colleagues' study. We suggest that future clinical studies need to gather a larger sample and include a comparison group of women with PTSD. references 1. Harned MS, Rizvi SL, Linehan MM: Impact of co-occurring post-traumatic stress disorder on suicidal women with borderline personality disorder.morbidity of borderline personality disorder and posttraumat-ic stress disorder in the US population. The authors report no financial relationships with commercial interests. To the Editor: We appreciate the thoughtful comments made by Dr. Nepon and his colleagues. Our recent study found that borderline personality disorder patients with and without PTSD did not significantly differ in the frequency, intent , and lethality of suicide attempts (1). Nepon et al. point out that this is inconsistent with the results of several recent epidemiologic studies (2–4). These studies, all published since our manuscript was originally submitted and thus not cited in our article, are to be commended for their use of large-scale, nationally representative samples. As Nepon et al. describe, these epidemiologic studies found that PTSD is associated with a greater risk of suicide attempt after controlling for the effects of borderline personality disorder (2, 3) and that individuals with both borderline personality disorder and PTSD had a higher rate of lifetime suicide attempt compared to individuals with either disorder alone (4). Nepon et al. suggest that the discrepant findings between these epidemiologic studies and our study are due to differences in sample size, as our study used a markedly smaller sample. Development of a new psychosocial treatment for adults with AD/HD. A: Metacognitive remediation in adult ADHD: treating executive function deficits via executive functions. reported on an important study examining the relationship between posttraumatic stress disorder (PTSD) and borderline personality disorder. This is an important area of inquiry, and the authors …