Table 1.

Delusions in the elderly

	Delusion type	Delusion content	Percentage of delusions
Delusions of theft	Persecutory	Patient is being robbed of possessions	20–75
Delusions of suspicion–physical anger	Persecutory	Harm to patient or patient’s loved ones	11–30
Delusions of jealousy	Persecutory	Spouse is unfaithful	3–16
Misidentification of familiar persons	Misidentification	Familiar person is misidentified	16
Misidentification of objects	Misidentification	Familiar object is misidentified	10–20
Capgras delusion	Misidentification	Familiar person replaced by identical imposter	6–36
Phantom boarder syndrome	Misidentification	Phantom residents inhabit patient home	20–30
Mirror sign	Misidentification	Misidentifies mirror image	3
TV sign	Misidentification	Misidentifies television image as real	7–8
Nurturing syndrome	Misidentification	Deceased family members still living	No range reported