Angiogenic gene expression and vascular density are reflected in ultrasonographic features of synovitis in early rheumatoid arthritis: an observational study

Table 1 Patient demographics (n = 12)

Variable	Value
Gender
Female	9 (75)
Male	3 (25)
Age, years, median (IQR)	47 (37 to 57)
Disease duration, months, median (IQR)	7.2 (4.9 to 9.5)
Serology
Rheumatoid factor	5 (41.6)
Anti- cyclic citrullinated peptide	4 (33.3)
Disease activity score in 28 joints (ESR)	5.41 (4.46 to 6.34)
Inflammatory markers
Erythrocyte sedimentation rate	43 (31 to 55)
C-reactive protein	23 (18 to 28)
Non-steroidal anti-inflammatory drug use	4 (33.3)

All patients were recruited form an early arthritis clinic with symptom onset <1 year and mean disease activity score in 28 joints of 5.41. Disease duration taken from the onset of initial symptoms: 42% of patients were rheumatoid factor-positive, 33% were anti-cyclic citrullinated peptide-positive. A third of patients were receiving anti-inflammatory medication prior to recruitment. Numbers are reported with percentage, otherwise, mean and IQR are given where specified.

ISSN: 1478-6362