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Table 1 Patient characteristics and disease activity parameters in total granulomatosis with polyangiitis cohort, active patients as determined by Birmingham Vasculitis Activity Score ≥ 3, and patients in remission/low disease activity as determined by Birmingham Vasculitis Activity Score < 3

From: IgG4:IgG RNA ratio differentiates active disease from remission in granulomatosis with polyangiitis: a new disease activity marker? A cross-sectional and longitudinal study

 

Overall

Active

Remission/LDA

p Value

Patient characteristics

 No. of patients

35

15

20

N/A

 Sex (males/females)

16/19

7/8

9/11

ns

 Age, years (mean + range)

54 (20–78)

59 (20–73)

50 (28–78)

ns

 Years since diagnosis (median + IQR)

5 (1–12)

3 (1–12)

7 (1.3–12.8)

ns

Disease activity parameters

 BVAS (median + IQR)

 

8 (5–10)

0 (0–0)

< 0.0001

 Physician VAS (median + IQR)

 

6 (2–8)

0 (0–0.5)

< 0.0001

 CRP (mg/L) (median + IQR)

 

30.9 (6.5–70.7)

2.5 (1.9–8.7)

< 0.01

 ESR (mm/h) (median + IQR)

 

20.5 (5–38)

5 (5–10)

< 0.05

 Prednisolone (mg/d) (median + IQR)

 

7.5 (5–15)

5.8 (0.3–13.8)

ns

 PR3-ANCA (kIU/L) (median + IQR)

 

124.6 (4.2–409)

16 (2.4–80.8)

ns

  1. Abbreviations: ANCA Antineutrophil cytoplasmic antibodies, BVAS Birmingham Vasculitis Activity Score, CRP C-reactive protein, ESR Erythrocyte sedimentation rate, LDA Low disease activity, ns Not significant, PR3 Proteinase 3, VAS Visual analogue scale