. 2024 May 23;22(4):624–634. doi: 10.9758/cpn.24.1176

Table 4.

Blood parameters of suicide attempters and non-suicide attempters in the MDD group

	SA (n = 8)	Non-SA (n = 37)	Statistics	Statistics	p value
Agmatine (ng/ml)	9.43 ± 2.88	7.57 ± 2.43	t = −1.897	df = 43	0.065^a
Putrescine (ng/ml)	595.98 ± 88.07	662.44 ± 104.70	MWU = 83.0	z = −1.930	0.054^b
Spermidine (ng/ml)	506.97 ± 85.45	496.05 ± 61.10	t = −0.427	df = 43	0.672^a
Spermine (ng/ml)	36.88 ± 7.15	34.68 ± 6.35	t = −0.869	df = 43	0.390^a

Values are presented as mean ± standard deviation.

MDD, major depressive disorder; SA, suicide attempters.

^aIndependent samples t test, ^bMann-Whitney Utest.