Available data suggest about 50% of delirium is hypoactive; this and the mixed motor subtype account for 80% of all cases of delirium.
It can be more difficult to recognise, and is associated with worse outcomes, than hyperactive delirium.
In this podcast, Christian Hosker, consultant liaison psychiatrist at the Leeds Liaison Psychiatry Service outlines when to suspect hypoactive delirium, how to assess, and appropriately manage patients.
Infographic explaining diagnosis:
http://www.bmj.com/content/bmj/suppl/2017/05/25/bmj.j2047.DC1/hosc038261.wi.pdf
Read the full article:
http://www.bmj.com/content/357/bmj.j2047