. 2019 Apr 4;14(4):e0214856. doi: 10.1371/journal.pone.0214856

Table 2. Stability of HCCs at 6 months.

	Time 1		Time 2		t	p	Cohen’s d [95% CI]^a
	M	SD	M	SD	t	p	Cohen’s d [95% CI]^a
HCCs^b	1.27	0.61	1.52	0.36	-3.46	0.001	-0.45 [-0.75, -0.14]
PSS^c	8.17	2.29	8.65	2.10	-1.30	0.201	-0.22 [-0.64, 0.20]

^aSize effect (confidence interval)

^bHair cortisol concentrations

^cPerceived Stress Scale