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Table 1 Participant description

From: Assessment of heterogeneity between European Populations: a Baltic and Danish replication case-control study of SNPs from a recent European ulcerative colitis genome wide association study

 

Baltic

Danish

Norwegian

 

cases

controls

cases

controls

cases

Controls

 

N = 441

N = 1156

N = 560

N = 796

N = 274

N = 282

Sex distribution

      

   % female

50

51

48

52

48

41

Age at sampling

      

   Median age (years, SD)

44 [17]

40 [12]

49 [16]

43 [11]

39 [15]

32 [7]

Age of diagnosis

      

   Median age (years, SD)

38 [16]

 

35 [11]

 

38 [15]

 

Disease extent, %

      

   Left sided colitis

76

 

80

 

69

 

   Extensive colitis

24

 

20

 

31

 

Smoking habits, %

      

   Current

12

 

17

 

13

 

   previous

28

 

36

 

31

 

   never

60

 

47

 

56

 
  1. In all three panels age- and sex-matched controls have been used.