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Table 1 Rheumatoid arthritis patients with active or stable, well controlled disease and control individuals

From: Interleukin-7 deficiency in rheumatoid arthritis: consequences for therapy-induced lymphopenia

Parameter

Controls

Active RA

OA

RA in remission

n

34

28

12

36

Age (mean ± standard deviation [range]; years)

48 ± 16 (24–62)

51 ± 17 (20–83)

60 ± 9 (49–73)

48 ± 11 (25–67)

Sex (male/female)

6/17

9/28

3/9

7/29

Disease duration (mean ± standard deviation [range]; years)

NA

5.1 ± 7.5 (0.1–37)

NA

9.3 ± 6.8 (2–28)

Remission duration (mean ± standard error [range]; months)

NA

NA

NA

29 ± 29 (6–144)

CRP (mean ± standard deviation [range]; mg/l), below /above detectiona

NA

55 ± 52 (5–164), 0/28

NA

3.5 ± 5.2 (0–12), 23/13

  1. aC-reactive protein (CRP) values <5 mg/l are considered below the detection range. CRP values <10 mg/l are considered normal among the local population. NA, not applicable; OA, osteoarthritis; RA, rheumatoid arthritis.