Table 5

Outline of Incongruence dimension scale. Table shows key points and ranges on the I dimension together with the criteria defining the ranges. The S set of psychotic symptoms are those recognized as having special weight in the diagnosis of schizophrenia and schizoaffective disorder (thought echo, insertion, withdrawal or broadcasting; passivity experiences; hallucinatory voices giving running commentary, discussing subject in third person or originating in some part of the body; bizarre delusions; catatonia). More details including explicit guidelines for ratings can be found on page 6 of the BADDS rating guidelines (Appendix A).

Range on I dimension

Criterion defining range


0–40

Psychotic symptoms occur only during affective episodes and do not include any of the S set.

Rating 0 – virtually completely mood congruent.

Rating 20 – approximate balance between mood congruent and incongruent.

Rating 40 – virtually completely mood incongruent

43

Psychotic symptoms occur only during affective episodes and include one or more of the S set which have not definitely been present for 2 weeks.

47

Psychotic symptoms occur only during affective episodes and include one or more of the S set which have definitely been present for 2 weeks.

50–59

Psychotic symptoms probably present for at least 2 weeks either side of an affective episode.

Rating 50 – on at least one occasion.

Ratings of 51–59 used to reflect recurrence and/or certainty.

60–100

Psychotic symptoms definitely present for at least 2 weeks either side of an affective episode.

Rating 60 – on at least one occasion.

Rating 80 – on many occasions.

Rating 100 – Psychotic symptoms predominate illness and occur chronically outside (or in absence of) affective episodes.


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

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