Table 1.

Patient characteristics

Donation	Blood and synovial fluid (n = 8)	Synovial tissue (n = 9)
Age, yearsa	57 (30–72)	62 (27–70)
Disease duration, yearsa	6.5 (< 1–13)	10.5 (1–22)
Female sex, n (%)	6 (75)	8 (89)
ACPA+ and/or RF+, n (%)	6 (75)	5 (56)
CRP, mg/La	25 (1–54)	N/A
ESR, mm/ha	51 (11–64)	N/A
SJC28a	1.5 (1–5)	N/A
TJC28a	1 (1–4)	N/A

N/A data at the time of donation is not available

^aMedian and range