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The Seasonal Health Questionnaire is more effective at detecting seasonal affective disorder than the Seasonal Pattern Adjustment Questionnaire

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Q Is the Seasonal Health Questionnaire or the Seasonal Pattern Adjustment Questionnaire a better tool to screen for seasonal affective disorder?


Embedded ImageDesign:

Prospective cohort study.

Embedded ImageSetting:

Two general medical practices, Southampton, UK; December 2000 to March 2001.

Embedded ImagePatients:

803 people, aged >26 years, randomly selected at morning or evening clinics. People unable to speak English were excluded.

Embedded ImageTest:

Seasonal Pattern Assessment Questionnaire (SPAQ); Seasonal Health Questionnaire (SHQ). Seasonal affective disorder was diagnosed automatically from completed questionnaires according to ICD-10, DSM-III-R, and DSM-IV criteria.

Embedded ImageDiagnostic standard:

Structured Clinical Interview for …

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