BioMed Research International

Research Article

Serum Heme Oxygenase-1 and BMP-7 Are Potential Biomarkers for Bone Metabolism in Patients with Rheumatoid Arthritis and Ankylosing Spondylitis

Table 1

Characteristics of patients with rheumatoid arthritis (RA) and ankylosing spondylitis (AS) in southwest China. Data were given as median (IQR).


Characteristics	Number of Patients (%) or median (IQR)
Characteristics	RA,	AS,

Female/male	32/8	8/27
Age, yrs	42 (37, 49)	37 (29, 44)
Present or past smokers (%)	6 (15.0)	24 (68.6)
Symptom duration, yrs	1 (1, 3)	5 (2, 10)
CRP, mg/L	6.9 (2.7, 12.8)	13.1 (6.8, 22.4)
ESR, mm/h	32.0 (15.0, 67.0)	46.5 (28.0, 72.8)
DAS28-ESR score	4.3 (3.4, 5.2)	NA
BASDAI score	NA	3.0 (2.4, 4.3)
BASFI score	NA	1.7 (0.8, 3.2)
BASMI score	NA	1.0 (0, 3.0)

IQR: interquartile range; NA: not applicable; CRP: C-reactive protein; ESR: erythrocyte sedimentation rate; DAS28-ESR: Disease Activity Scores 28 using ESR; BASDAI: Bath Ankylosing Spondylitis (BAS) Disease Activity Index; BASFI: BAS Functional Index; BASMI: BAS Metrology Index.