Table 1 Demographical and clinical characteristics of patients with ALL or JIA

N

49

98

Age, y (median [interquartile range])

7.3 [3.6–12.4]

7.6 [3.1–12.4]

NS**

Sex ratio, males per female

1.9

0.7

< 0.01*

Time to diagnosis, days (median [interquartile range])

57 [38;90]

121 [69;266]

< 0.001**

 Joint pain

40 (82)

98 (100)

NS*

 Non-articular pain

18 (37)

7 (7)

< 0.001*

Initial presentation, n (%)

< 0.05*

 Diffuse

42 (86)

68 (69)

 Localized

7 (14)

30 (31)

 Fever

30 (61)

12 (12)

< 0.001*

  Asthenia

34 (69)

7 (7)

< 0.001*

  Anorexia

12 (24)

4 (4)

< 0.001*

  Weight loss

10 (20)

4 (4)

< 0.01***

 Arthritis

1 (2)

80 (82)

< 0.001*

 Hepatomegaly, splenomegaly or lymphadenopathy

37 (76)

2 (2)

< 0.001*

  Hepatomegaly

23 (47)

1 (1)

< 0.001*

  Splenomegaly

15 (31)

1 (1)

< 0.001*

  Lymphadenopathy

28 (57)

1 (1)

< 0.001*

 Anemia signs

25 (51)

1 (1)

< 0.001*

 Thrombocytopenia signs

10 (20)

0 (0)

< 0.001***

 Neurological disorders

8 (16)

2 (2)

NS***

 Dermatological signs

1 (2)

7 (7)

NS***