Emoqol 100, an ultra ultra-brief mood case-finding tool: A diagnostic accuracy study

Area of Science:

• Primary Care Medicine
• Psychiatry
• Diagnostic Accuracy Studies

Background:

• Screening for low mood in primary care is often time-consuming with current depression inventories.
• Efficient and accurate case-finding tools are needed for busy ambulatory care settings.

Purpose of the Study:

• To evaluate the diagnostic accuracy of a single verbal question, the emotional quality of life (Emoqol 100), for detecting low mood.
• To assess Emoqol 100's utility in patients presenting with symptoms of distress in primary care.

Main Methods:

• A retrospective audit of 76 patients with possible distress/low mood in a primary care clinic.
• The index test was the verbal Emoqol 100 (0-100 scale).
• The reference standard was the written Patient Health Questionnaire-9 (PHQ-9) with a cut-point of ≥10.

Main Results:

• The Emoqol 100, with a cut-point of <50, demonstrated a sensitivity of 47% and a high specificity of 93% (95% CI 86-100).
• Positive and negative predictive values were 95% and 37%, respectively.
• The verbal Emoqol 100 test takes less than 15 seconds to administer.

Conclusions:

• The Emoqol 100 shows high specificity, indicating its potential as a reliable indicator for probable mood issues when the score is low (<50).
• This verbal screening tool offers a time-efficient alternative for primary care clinicians managing patients with distress.
• Further research may validate Emoqol 100's role in routine primary care case-finding for depression.