Table 1.
Questionnaire Summary
| Demographics | 
| Age, sex, age of diagnosis | 
| Level of education, family income | 
| Diagnosis | 
| Pre-diagnosis symptoms and duration | 
| Status of recovery from symptoms | 
| Other diagnoses | 
| Possible triggers | 
| Number and types of doctors consulted | 
| Diet | 
| Adherence to gluten-free diet | 
| Difficulty in following diet | 
| Rating of information sources | 
| Difficulty with labelling of foods | 
| Quality of Life | 
| SF12 Health Survey © | 
| Celiac-specific quality of life questions for adults/children | 
| Bone disease | 
| History of fractures | 
| Bone density status | 
| Osteoporosis treatment | 
| Reproduction | 
| Specific questions for women and men | 
| Celiac disease in family members | 
| Testing of first-degree relatives for CD | 
| Suspected CD in family | 
| Other diseases of members/ first-degree relatives | 
| Gastrointestinal, cancer, autoimmune, blood, endocrine, neurological, musculoskeletal, other |