The Menstrual Distress Questionnaire (MDQ) is a standard method for measuring cyclical perimenstrual symptoms. It is used to help clinicians and researchers make systematic, empirical evaluations of a woman’s symptoms, of treatments, and of etiological theories.
The MDQ is a 46-item self-report inventory for use in the assessment and treatment of premenstrual and menstrual symptoms. The MDQ can distinguish cyclical from noncyclical changes in physical symptoms, mood and behavior, and arousal. It identifies the type and intensity of symptoms women experience during each phase of the menstrual cycle and can aid researchers and clinicians in specifying the effect of therapeutic interventions.
There are two forms of the MDQ. Form C (Cycle) enables a woman to report her experience during each of three phases of her most recent menstrual cycle (4 days before menstrual flow, during menstrual flow, and the remainder of the cycle) and is useful for screening. Form T (Today) enables a woman to describe her experiences on a specific day. MDQ profiles based on repeated use of Form T are more accurate and detailed than those of Form C. Form T is necessary to identify cyclical changes.
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