The comorbidity of Axis I disorders in depressed pregnant women

Depression during pregnancy is highly prevalent and is associated with increased risk of a variety of negative psychological and medical outcomes in both mothers and offspring. Antenatal depression often co-occurs with significant anxiety, potentially exacerbating morbidities for women and their children. However, screening during the antenatal period is frequently limited to assessment of depression so that other significant comorbid disorders may be missed. Follow-up assessment by clinicians has similarly focused primarily on detection of depressive symptoms. Anxiety, obsessive compulsive disorder, and post-traumatic stress disorder, among others, often go undetected in perinatal care settings, even when depression is identified. Failing to recognize these comorbid diagnoses may lead to inadequate treatment or only partial alleviation of distress. Consequently, screening for and assessment of comorbid disorders is warranted. In this study, 382 pregnant women (M age = 25.8 [SD = 5.3] years, 85.0% Caucasian) receiving care at a university hospital clinic and Maternal Mental Health Care centers in eastern Iowa and who screened positive for depression on the Beck Depression Inventory completed the Structured Clinical Interview for DSM-IV to assess comorbid mental health symptoms and diagnoses. Overall, findings demonstrate high rates of anxiety disorders among women both with and without current major depression, although depressed women reported higher rates of generalized anxiety disorder and post-traumatic stress disorder. Notably, however, incidence-specific symptoms were comparable across groups. Routine screening of both anxiety and depression during pregnancy should be conducted.