Table 2.

Correlation matrix of variables.

Variables	1	2	3	4	5
Gender	1.00
Age	−0.13	1.00
Group	0.12	0.09	1.00
Stress	0.20 **	−0.02	−0.16 *	1.00
Growth status	0.12	0.05	0.90 **	−0.22 **	1.00

Note: *, ** represent p < 0.05 and p < 0.01, respectively.