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| Part 1—market research, n=118 | N | % |
|---|---|---|
| Mean age, year | 39.25 | |
| Sex | ||
| Male | 7 | 5.9 |
| Female | 108 | 91.5 |
| Other | 1 | 0.8 |
| Unspecified | 2 | 1.7 |
| Location | ||
| Canada | 112 | 94.9 |
| Major cities | 55 | 46.6 |
| Small towns | 57 | 48.3 |
| Australia | 3 | 2.5 |
| USA | 1 | 0.8 |
| Method of diagnosis | ||
| Intestinal biopsy | 69 | 58.5 |
| Blood test | 75 | 63.6 |
| Skin biopsy | 1 | 0.8 |
| Dermatitis herpetiformis rash | 1 | 0.8 |
| Genetic test | 2 | 1.7 |
| Food elimination diet | 1 | 0.8 |
| Doctor | 1 | 0.8 |
| Not formally diagnosed | 18 | 15.3 |
