From: Prevalence and characteristics of adults avoiding gluten without celiac disease: a long-term population-based follow-up study
Health 2000, n = 2 682 733
Health 2011, n = 1 967 876
2000 vs. 2011
Age, years
%
95% CI
P
30–49
0.1
0.0–0.3
0.7
0.3–1.3
0.003
50–69
0.2
0.1–0.5
0.5
0.3–1.0
0.060
70-
0.3
0.1–0.9
1.3
0.5–3.3
0.019
All
0.1–0.3
0.5–1.1
< 0.001