Depression in adults with epilepsy: Relationship to psychobiological variables

Table 4 Correlations between scores of depression, anxiety, hormonal- and neurotransmitters related variables

Variables	BDI-II	HAM-A	Free testosterone	SHBG	Serotonin	Noradrenaline	Adrenaline
BDII	-
HAM-A	0.69 0.000	-
Free testosterone	0.2 0.8	0.4 0.6	-
SHBG	0.6 0.4	0.8 0.2	-0.2 0.8	-
Serotonin	-0.447 0.048	-0.569 0.009	-1 1	-0.274 0.389	-
Noradrenaline	-0.028 0.458	-0.576 0.032	-0.113 0.677	0.006 0.981	-0.632 0.038	-
Adrenaline	-0.094 0.825	0.016 0.971	-0.123 0.628	-0.196 0.422	0 1	0.733 0.039	-
Age	0.077 0.59	0 0.997	0.106 0.597	-0.2 0.8	-0.118 0.621	-0.143 0.714	0.133 0.753
Age at onset	0.04 0.778	0.04 0.778	0.3 0.2	-0.4 0.6	-0.352 0.128	0.25 0.516	-0.312 0.452
Duration of illness	-0.007 0.96	-0.007 0.96	0.238 0.262	0.316 0.684	0.176 0.458	-0.305 0.425	-0.078 0.854
Dose	-0.141 0.552	-0.141 0.552	0.266 0.333	-0.258 0.742	0.229 0.289	-0.775 0.225	-0.084 0.844
Drug level	-0.073 0.54	-0.019 0.476	0.23 0.523	-0.273 0.417	0.008 0.97	-0.291 0.335	-0.284 0.397

BDI-II: Beck depression inventory – 2nd edition; HAM-A: Hamilton anxiety rating scale; SHBG: Sex hormone binding globulin.