Table 1

Characteristics of celiac disease subjects

n

%

Mean

Median

Quartile

1st

3rd

Participants

1,031

Males

495

48

Females

536

52

Age when responding (years)

1,031

52

53

36

67

Duration to diagnosis (years)

First symptom

818

9.7

4

1

14

First doctor visit

853

5.8

1

0

8

Age at diagnosis for the whole group

945

39

41

27

53

0-19 years

162

17

20-39 years

292

31

40-59 years

353

37

≥ 60 years

138

15

Age at diagnosis in relation to

period for diagnosis

< 1980

67

17

2

1

37

1980-1989

162

27

32

1

45

1990-1999

272

39

43

30

52

2000-2004

221

46

47

33

59

2005-2009

444

45

46

31

59

Compliance with a gluten-free diet

1,025

Strict

979

96

Non-strict

46

4

Household member with celiac disease

117

11

Highest educational level

1,013

Primary school

263

26

Secondary school

414

41

University degree

336

33

Norström et al. BMC Gastroenterology 2011 11:118   doi:10.1186/1471-230X-11-118