Over 120,000 people with kidney disease start chronic dialysis therapy across North America each year. In addition to high mortality, studies uniformly report high rates of depression, pain and non-specific symptoms after dialysis is started. Suicide rates are high, particularly early in the treatment history, and withdrawal from dialysis is increasingly common in recent years, suggesting a high burden of depressive symptoms. While various treatments appear to be effective, there are multiple barriers preventing patients from getting or accepting appropriate care for depression. The investigators hypothesize that antidepressant therapy may improve morbidity and mortality when prescribed to patients with acute or chronic kidney disease (CKD) around the time of starting chronic dialysis therapy.