Table 4.

Correlations between SDS in patients with MOH and their demographics and clinical characteristics.

Characteristic	SDS
	(r) Coef.	P-value
Age	−0.018	0.818
BMI	−0.111	0.161
Duration of MOH	0.133	0.093
MHD	0.173	0.029*
AMD	0.396	<0.001*
HIT-6 total score	0.328	<0.001*
DASS-12 total score	0.265	0.001*
SURPS total score	0.264	0.001*
CUDQ total score	0.299	0.001*

AMD, acute medication days; BMI, body mass index; CUDQ, Caffeine Use Disorder Questionnaire; DASS-12, Depression Anxiety Stress Scales–12; HIT-6, Headache Impact Test–6; MHD, monthly headache days; MOH, medication overuse headache; SDS, Severity of Dependence Scale; SURPS, Substance Use Risk Profile Scale.

(r) Coef., Spearman correlation coefficient.

The p-values were adjusted for multiple testing using Benjamini and Hochberg procedure.

*p-value ≤ 0.029 is considered significant.