Table 3.

A correlation between characteristics of benzodiazepine use and neurocognitive function in insomniacs using benzodiazepine

	Age at onset of use	Duration of exposure	DDD	Cumulative dose
MMSE	-0.148	-0.454*	0.271	-0.183
Digit span backward	-0.412*	0.245	-0.016	0.065
Trail Making Test A	-0.468*	0.221	-0.238	-0.113
Categorical fluency	-0.168	-0.175	-0.086	-0.315
Frontal assessment battery	0.227	-0.444*	0.276	-0.265

^*p<0.05.

Spearman’s correlation was conducted. MMSE, Mini-Mental State Examination; DDD, daily defined dose