Table 2. Clinical and other substance-related characteristics of patients with schizophrenia, southwest Ethiopia, 2019 (n = 515).

Variables	Category	Numbers (n)	Percentage (%)
Admission history	No	308	59.8
	Yes	207	40.2
Frequency of admission	1	75	14.6
	2	88	17.1
	3	44	8.5
Physical illness	Yes	38	7.4
	No	477	92.6
Family history of mental illness	No	434	84.3
	Yes	81	15.7
Family history of substance use	No	427	82.9
	Yes	88	17.1
Alcohol use disorder	Yes	187	36.3
	No	328	63.7
Khat dependence	Yes	155	30.1
	No	360	69.9
Duration of illness	<6 years	292	56.7
	≥6 years	223	43.3
Treatment duration	<5 years	271	52.6
	≥5 year s	244	47.7