Relationship of attention-deficit/hyperactivity disorder symptom severity with severity of alcohol-related problems in a sample of inpatients with alcohol use disorder

Figures & data

Table 1 Sociodemographic variables and severity of clinical variables

Variables	Mean (n)	SD (%)
Age	44.69	10.19
Duration of education	9.25	3.65
Marital status
Married	116	61.1
Single	40	21.1
Divorced/widower	34	17.9
Employment
No	55	28.9
Yes	65	34.2
Part-time	26	13.7
Retired	44	23.2
Michigan Alcohol Screening Test	27.63	10.20
Beck Depression Inventory	16.66	11.46
BIS-11-SF	30.91	6.33
Non-planning	11.17	3.18
Motor	10.44	2.62
Attentional	9.30	2.43
ASRS	25.77	10.94
Inattentive	12.12	6.18
Hyperactive/impulsive	13.64	6.16

Abbreviations: BIS-11-SF, Short Form Barratt Impulsiveness Scale; ASRS, Adult ADHD Self-Report Scale; SD, standard deviation; ADHD, attention-deficit/hyperactivity disorder.

Table 2 Correlations between the scale scores (P<0.001)

Scales	BDI	NPI	MI	AI	BIS-11-SF	IN	HI	ASRS
MAST	0.353	0.360	0.259	0.309	0.407	0.481	0.251	0.414
BDI		0.425	0.463	0.453	0.579	0.564	0.416	0.553
NPI			0.278	0.421	0.779	0.390	0.333	0.408
MI				0.474	0.736	0.288	0.441	0.412
AI					0.792	0.434	0.297	0.413
BIS-11-SF						0.482	0.464	0.534

Abbreviations: MAST, Michigan Alcohol Screening Test; BDI, Beck Depression Inventory; NPI, non-planning impulsivity; MI, motor impulsivity; AI, attention impulsivity; BIS-11-SF, Short Form Barratt Impulsiveness Scale; IN, inattention; HI, hyperactivity/impulsivity; ASRS, Adult ADHD Self-Report Scale; ADHD, attention-deficit/hyperactivity disorder.

Table 3 Predictors of severity of alcohol-related problems measured with the Michigan Alcohol Screening Test (MAST)

Model	Unstandardized coefficients		Standardized coefficients	t	P-value
	B	Standard error	Beta
Step 1
BDI	0.314	0.061	0.353	5.174	<0.001
Step 2^a
BDI	0.157	0.072	0.177	2.185	0.030
BIS-11-SF	0.491	0.130	0.304	3.762	<0.001
Step 2^b
BDI	0.217	0.065	0.244	3.334	0.001
Non-planning	0.823	0.235	0.256	3.503	0.001
Step 3^a
BDI	0.108	0.071	0.122	1.513	0.132
Non-planning	0.644	0.235	0.201	2.739	0.007
ASRS	0.247	0.074	0.265	3.325	0.001
Step 3^b
BDI	0.056	0.070	0.063	0.801	0.424
Non-planning	0.604	0.227	0.188	2.662	0.008
ASRS-inattentive	0.614	0.128	0.372	4.807	<0.001

Notes: Step 1: F=26.77, df=1,188, P<0.001, adjusted R²=0.120, step 2^a=F=21.40, df=2,187, P<0.001, adjusted R²=0.178, R² change =0.062, step 2^b=F=20.32, df=2,187, P<0.001, adjusted R²=0.170, R² change =0.054, step 3^a=F=17.96, df=3,186, P<0.001, adjusted R²=0.212, R² change =0.046, step 3^b=F=22.85, df=3,186, P<0.001, adjusted R²=0.258, R² change =0.091.

Abbreviations: BDI, Beck Depression Inventory; ASRS, Adult ADHD Self-Report Scale; ADHD, attention-deficit/hyperactivity disorder; df, degrees of freedom; BIS-11-SF, Short Form Barratt Impulsiveness Scale.