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Table 2 Characteristics of patients reported in selected CNO reference cohorts

From: First-year follow-up of children with chronic nonbacterial osteomyelitis—an analysis of the German National Pediatric Rheumatologic Database from 2009 to 2018

 

Canada 2002 [23]

USA 2012 [24]

France 2015 [25]

UK 2016 [10]

Germany 2015 [26]

Eurofever 2017 [27]

Germany NPRD 2020

Number of Patients

23

70

178

41

95

486

774

Male %

17

33

31

25

42

36

37

Female %

83

67

69

75

56

64

63

Mean of age at disease onset

9

9.7

10.9

9

11.7

9.9

11.1

Delay of diagnosis in months

13

6

17

15

11

12

8.4

Number of lesions mean

4

3.5

3

N/A

4

4

3

Unifocal in %

43

29

7

24

16

29

37

Multifocal in %

57

71

93

76

84

71

63

Active disease in % after follow-up

22

39

66

N/A

33

50

47

Months of follow-up

68

22

48

N/A

49

N/A

12

  1. NPRD National Pediatric Rheumatologic Database, N/A not available