The mnemonic
SIG E CAPS
What each word stands for
- SSleep disturbance
- ILoss of interest
- GGuilt or worthlessness
- ELow energy
- CPoor concentration
- AAppetite or weight change
- PPsychomotor change
- SSuicidal thoughts
Why it matters clinically
Diagnosis needs several symptoms for at least two weeks, including low mood or loss of interest. Always ask about suicide.
Where it stops being reliable
A memory aid for symptoms only. Diagnostic thresholds differ between DSM and ICD, so learn the criteria you are examined on.
Teaching aid, still awaiting independent review. Confirm facts in a standard source.