Table 3.

Rates of misdiagnosis between psychosis groups: possible AD considered correct diagnosis

Diagnosis	Group
	AD − P		AD + P		AD + D		AD + H		AD + DH		Total
Correct diagnosis	487	80.4%	292	82.3%	146	84.4%	66	83.5%	80	77.7%	779	81.1%
Incorrect diagnosis	119	19.6%	63	17.8%	27	15.6%	13	16.5%	23	22.3%	182	18.9%
False negative	26	4.3%	40	11.3%∗	15	8.7%∗	9	11.4%∗	16	15.5%∗	66	6.9%
False positive	93	15.3%	23	6.5%∗	12	6.9%∗	4	5.1%†	7	6.8%†	116	12.1%
Total	606	63.1%	355	36.9%	173	18.0%	79	8.2%	103	10.7%	961	100%

Abbreviations: AD − P, never psychotic; AD + D, delusion-only psychosis; AD + H, hallucination-only psychosis; AD + DH, delusion and hallucination psychosis.

^∗P < .01 compared with AD − P.

^†P < .05 compared with AD − P.