. 2018 Jun 23;43(13):2578–2585. doi: 10.1038/s41386-018-0126-5

Table 1.

Patient demographics and clinical baseline information. Combination of medication is

Characteristics	NFE Group (n = 16)	NFS group (n = 16)	Group differences
Characteristics	NFE Group (n = 16)	NFS group (n = 16)	Statistical values	p values
Gender	Female = 11; Male = 5	Female = 10; Male = 6	Pearson χ² = 0.139	0.71
Age	M: 47.19 years (SD:12.50)	M: 46.94 years (SD:12.74)	t₃₀ = 0.6	0.96
Handedness	Right = 14; Left = 1; Ambidextrous = 1	Right = 13; Left = 3	Pearson χ² = 2.037	0.36
Depression severity (HDRS-17)	19.88 (SD: 3.65)	19.09 (SD: 5.09)	t₃₀ = 0.5	0.62
Duration of depressive disorder	19 years (SD:12.39)	18.56 years (SD:14.76)	t₃₀ = 0.9	0.93
Medication	SSRI only = 4; Non-SSRI = 6; Combination = 6 (Combination of two antidepressants = 3; Augmentation = 3; Augmentation included either mood stabilizer, lithium, or 2nd generation antipsychotic in addition to antidepressant)	SSRI only = 7; Non-SSRI = 5; Combination = 4 (Combination of two antidepressants = 0; Augmentation = 4; Augmentation included either mood stabilizer, lithium, or 2nd generation antipsychotic in addition to antidepressant)	Pearson χ² = 1.31	0.52