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Table 3 Illness dimensions of the Maudsley Staging Method & suggested scoring conventions

From: Standardisation framework for the Maudsley staging method for treatment resistance in depression

Parameter/dimension Parameter categories Score
Duration
  Acute (≤12 months) 1
  Sub-acute (13–24 months) 2
  Chronic (> 24 months) 3
Symptom severity
(At baseline) Subsyndromal 1
  Syndromal  
   Mild 2
   Moderate 3
   Severe without psychosis 4
   Severe with psychosis 5
Highest score for illness dimensions 8
Overall maximum score for MSM   15
Severity score categories of the MSM Severity range 3–15
Mild 3–6
Moderate 7–10
Severe 11–15