Table 1 Demographic characteristics and follow-up time of children with a clinical AID diagnosis without pathogenic gene variants

Female gender, N (%)

4 (44)

3 (38)

6 (43)

0 (0)

13 (39)

Mediterranean ethnicity, N (%)

8 (89)

5 (63)

7 (50)

1 (50)

21 (64)

Age at AID diagnosis in years, median (range)

3.6 (0.9–7.8)

3.8 (0.8–6.1)

3.3 (0.9–8.5)

9.1 (6.2–11.9)

3.6 (0.8–11.9)

Age at colchicine start in years, median (range)

3.6 (1.2–10)

3.9 (0.8–7.5)

3.5 (1.2–9.1)

9.5 (6.3–12.6)

3.8 (0.8–12.6)

Age at last follow-up in years, median (range)

5.6 (2.5–11.6)

5.0 (1.7–9.7)

5.0 (2.3–10.6)

10.5 (6.9–14.1)

5.3 (1.7–14.1)

Time baseline to last follow-up in months, median (range)

15.2 (8.7–34.2)

11.2 (5.3–47.3)

13.7 (7.8–47.3)

12.7 (6.9–18.4)

14.1 (5.3–47.3)