Table 1.

Rates of mental disorder in people convicted of homicide

	Source	No of people convicted of homicide	% of all homicides; 95% CI (n=718)	% of homicides with psychiatric report (n=500)
Convicted of section 2 manslaughter (diminished responsibility)	Homicide index	69	10 (7 to 12)
Hospital order	Homicide index	46	6 (5 to 8)
Mental disorder during lifetime	Psychiatric reports	220	31 (27 to 34)	44 (40 to 48)
Schizophrenia during lifetime	Psychiatric reports	30	4 (3 to 6)	6 (4 to 8)
Abnormal mental state at time of offence	Psychiatric reports	71	10 (8 to 12)	14 (11 to 17)
Contact with mental health services:
During lifetime	Mental health case records	102	14 (12 to 17)
1 year before offence	Mental health case records	58	8 (6 to 10)