Table 2.

Correlation analysis of perceived stress, social support and insomnia (n = 259).

Variable	M	SD	1	2	3	4	5	6
1 Patient’s perceived stress	31.91	9.41	1
2 Caregiver’s perceived stress	30.92	7.86	0.894*	1
3 Patient’s social support	47.18	9.72	−0.613*	−0.577*	1
4 Caregiver’s social support	48.56	8.69	−0.313*	−0.282*	0.425*	1
5 Patient’s insomnia	6.04	3.47	0.839*	0.723*	−0.640*	−0.365*	1
6 Caregiver’s insomnia	5.38	2.27	0.482*	0.387*	−0.370*	−0.638*	0.611*	1

M, mean; SD, standard deviation. *p < 0.05.