Table 2.

Rates of misdiagnosis between psychosis groups: possible AD considered incorrect diagnosis/false negatives

Diagnosis	Group
	AD − P		AD + P		AD + D		AD + H		AD + DH		Total
Correct diagnosis	447	73.8%	284	80.0%∗	141	81.5%∗	64	81.0%	79	76.7%∗	731	76.1%
Incorrect diagnosis	159	26.2%	71	20.0%∗	32	18.5%∗	15	19.0%	24	23.3%∗	230	23.9%
False negative	66	10.9%	48	13.5%	20	11.6%	11	13.9%	17	16.5%	114	11.9%
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 < .05 compared with AD − P.

^†P < .01 compared with AD − P.