Reliability of ADDIS for diagnoses of substance use disorders according to ICD-10, DSM-IV and DSM-5: test-retest and inter-item consistency

Table 2 Systematic correlation (γ) between two assessments – test, and retest after one week – as to number of fulfilled criteria of substance use disorders according to the ICD-10, DSM-IV and DSM-5, respectively

	ICD-10			DSM-IV		DSM-5
	Substance dependence, 6 criteria	Harmful use, one dichotomous criterion		Substance dependence, 7 criteria	Substance abuse, 4 criteria	Substance use disorder, 11 criteria
	γ	%	К	γ	γ	γ
Alcohol	.82	97	.84	.84	.80	.78
Sedatives, hypnotics, anxiolytics	.91	97	.93	.84	.93	.87
Cannabinoids a)	.97	97	.93	.96	.98	.94
Cocaine b)	.99	93	.79	.97	1.00	-
Other stimulants c)	.91	93	.83	.90	.93	.93
Opioids d)	.76	97	.92	.97	.95	.94
Hallucinogens	1.00	97	.65	.95	1.00	.88
Volatile solvents	1.00	93	.46	1.00	.93	.99
Mean, all substances	.92	96	.79	.93	.94	.90

a) Cannabis in DSM-IV; b) Cocaine, amphetamines and other stimulants are collapsed to stimulants in DSM-5; c) In ICD-10 this includes amphetamine and amphetamine-like substances (not caffeine), while in DSM-5, stimulants also include cocaine; d) Includes opiates as well as synthetic opioids, e.g. analgesics.
In addition, agreement concerning harmful use is tested with absolute agreement (%) as well as systematic agreement (К), (n = 30).

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