Effects of serum inflammatory factors, health index and disease activity scores on ankylosing spondylitis patients with sleep disorder

Table 6 Correlation analysis of serum inflammatory factors, health index and disease activity scores in patients with as complicated by sleep disorders

Parameters	r	R2	P value
CRP	0.235	0.055	0.015
ESR	0.199	0.039	0.041
TNF-α	0.246	0.061	0.011
IL-6	0.298	0.089	0.002
IL-1β	0.266	0.071	0.006
BASDAI	0.522	0.273	P < 0.001
BASFI	0.384	0.148	P < 0.001
BASMI	0.657	0.432	P < 0.001
ASDAS-CRP	0.344	0.118	P < 0.001
ASDAS-ESR	0.603	0.364	P < 0.001
Physical functioning	-0.208	0.043	0.032
Role-physical	-0.211	0.045	0.03
Bodily pain	-0.095	0.009	0.335
General health	-0.207	0.043	0.033
Vitality	-0.243	0.059	0.012

BASDAI: Bath ankylosing spondylitis disease activity index; BASFI: Bath ankylosing spondylitis functional index; BASMI: Bath ankylosing spondylitis metrology index; ASDAS: Ankylosing spondylitis disease activity score; CRP: C-reactive protein; ESR: Erythrocyte sedimentation rate; TNF-α: Tumour necrosis factor-alpha; IL: Interleukin.