Table 1

Some key boundaries in Bipolar Spectrum Disorders. The table lists some of the important diagnostic boundaries in bipolar spectrum disorders and the criteria used in making diagnostic decisions at these boundaries.


Criteria on which decision based

Major Depression (with Sub-clinical hypomanias) v. Bipolar II Disorder

Number and duration of hypomanic-like symptoms

Bipolar I v. Bipolar II Disorder

Impairment and duration

Bipolar I v. Schizoaffective Disorder, Bipolar Type

Occurrence and timing of psychotic symptoms

Schizophrenia v. Schizoaffective Disorder, Bipolar Type

Balance of psychotic and affective symptoms

Craddock et al. BMC Psychiatry 2004 4:19   doi:10.1186/1471-244X-4-19

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