Cross-sectional observational, non interventional, multicenter study of retrospective review of clinical records of ambulatory followed up bipolar patients in order to record epidemiological aspects of the course of the disorder, more specifically of bipolar depression episodes and the clinical practices carried out by psychiatrists in Spain in bipolar depressive episodes

Inclusion Criteria:

• Diagnosed of Bipolar Disorder I or II (DSM-IV-TR) in ambulatory follow-up
• Evolution of the bipolar diagnoses inferior to 10 years
• Having recorded in the patient's clinical history the clinical management of at least two bipolar depressive episodes

Exclusion Criteria:

• Not having enough information recorded in the clinical history for the essential measurement variables
• To have taken part in other study in the last 6 months

Adult bipolar I or II patients with no more than 10 years of evolution of the bipolar disorder, with continued assistance in ambulatory settings and whose psychiatrist has recorded the treatment strategy used for of at least 2 depressive episodes within the patients' bipolar condition in the clinical history