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Table 2 Diagnoses of the patients and proportion of patients with abdominal pain, NSAID usage, and their ESR and FC values

From: Fecal calprotectin in juvenile idiopathic arthritis patients related to drug use

All patients

(n = 90)

Abdominal pain

n (%)

NSAID usage

n (%)

ESR mm/h range (median) elevated (n)

FC ÎĽg/g range (median) elevated (n)

JIA patients

Oligoarthritis (33)

13 (39%)

15 (45%)

1–80 (12)

n = 15

1–368 (17)

n = 5

Polyarthritis (29)

11 (38%)

14 (48%)

1–94 (16)

n = 15

2–1617 (34)

n = 7

JSpA* (8)

1 (13%)

5 (63%)

10–35 (19)

n = 4

11–184 (18)

n = 1

All JIA (70)

27 (39%)

34 (70%)

1–94 (15)

n = 34 (49%)

1–1617 (25)

n = 13 (19%)

Arthralgia (20)

12 (60%)

12 (60%)

7–50 (10)

n = 7 (35%)

0–113 (32)

n = 1 (5%)

  1. JIA juvenile idiopathic arthritis
  2. *JSpA juvenile spondylarthritis
  3. NSAID non-steroidal anti-inflammatory drug
  4. ESR erythrocyte sedimentation rate
  5. FC fecal calprotectin, cut-off of 100 μg/g for elevated values [17–19]