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

Table 3 Comparison of serum inflammatory factors between the desirable and undesirable prognosis groups

Parameters	Desirable prognosis group (n = 52)	Undesirable prognosis group (n = 54)	t	P value
CRP (mg/L)	6.17 ± 2.34	7.52 ± 3.21	2.482	0.015
ESR (mm/h)	16.56 ± 3.78	18.32 ± 4.91	2.076	0.04
TNF-α (pg/mL)	45.21 ± 9.33	50.79 ± 12.54	2.605	0.011
IL-6 (pg/mL)	28.14 ± 6.75	32.79 ± 8.21	3.195	0.002
IL-1β (pg/mL)	12.45 ± 3.88	14.67 ± 4.21	2.82	0.006

CRP: C-reactive protein; ESR: Erythrocyte sedimentation rate; TNF-α: Tumour necrosis factor-alpha; IL: Interleukin.