Table3.

Step-wise multiple linear regression of factors associated with SF-36

Variable	ß	t Value	95%CI	P Value
PCS
Headache frequency	− 0.218	− 2.503	(− 1.198, − 0.139)	0.014
HIT− 6	− 0.270	− 3.151	(− 0.599, − 0.136)	0.002
HAMD	− 0.345	− 4.164	(− 0.936, − 0.332)	< 0.001
MCS
HAMD	− 0.379	− 5.134	(− 1.124, − 0.498)	< 0.001
PSSS	0.270	3.912	(0.190, 0.581)	< 0.001
SIOSS	− 0.344	− 4.434	(− 2.018, − 0.771)	< 0.001

PCS physical component summary, HIT-6 Headache Impact Text-6, HAMD Hamilton Rating Scale for Depression, MCS mental component summary, PSSS Perceived social support scale, SIOSS Self-rating Idea of Suicide Scale