The state of nursing science - cultural and lifespan issues in depression: part I: focus on adults.

Depression is a devastating disorder, affecting approximately 17 million persons within the United States. The manifestation of depressive phenomena is a complex, dynamic, biopsychosocial process involving lifespan and cultural aspects. Unless appropriately treated, depression persists over time having a significant negative effect on life and increasing the risk of suicide. Psychiatric mental health (PMH) nurses are uniquely positioned to address this epidemic health concern. This manuscript is Part I of the review of current nursing literature on adult depression. This review can be used to enhance PMH nurses' knowledge of current nursing research and their efforts in addressing prevention, early intervention, education and treatment of adults who experience depression.