Extra-intestinal manifestations of non-celiac gluten sensitivity: An expanding paradigm

Table 1 Studies reporting the prevalence of people avoiding gluten-containing foods

Ref.	Country	Population	Sample size	Avoidance rate of gluten-based products
Tanpowpong et al[60], 2012	New Zealand	Pediatric	916	5.2%
Rubio-Tapia et al[61], 2013	United States	Pediatric	7798	0.7%
DiGiacomo et al[62], 2013	United States	National Health and Nutrition Examination Survey	7762	0.6%
Lis et al[63], 2014	Australia	Adults	910	41.2%
Golley et al[64], 2015	Australia	Adults	1184	10.6%
Mardini et al[65], 2015	United States	Pediatric	14701	1%
Aziz et al[59], 2014	United Kingdom	Adults	1002	3.7%
Van Gils et al[8], 2016	The Netherlands	Adults	785	6.2%
Carroccio et al[7], 2017	Italy	Adolescents	548	2.9%