Mood inventories like the PHQ-9 or Kessler are very useful in primary care but take time to administer. The latest validation of the Emoqol-100 has new information which enables clinicians to assess their patient's mood quickly.1
The question goes like this: "How is your emotional quality of life now, with 100 being perfect and zero being the worst imaginable?"
A score of 60 or below is associated with a low mood. A score of 10 or below means the patient is 25 times more likely to have a low mood than for a higher score. It takes about 15 seconds to ask, is simple and does not require the patient to have their glasses handy. To be ok, the patient needs a score of 65/100 or more.