Body Mass Index and Associated Clinical Variables in Patients with Non-Celiac Wheat Sensitivity

Pasquale Mansueto, Maurizio Soresi, Francesco La Blasca, Francesca Fayer, Alberto D'Alcamo, Antonio Carroccio, Pasquale Mansueto, Maurizio Soresi, Francesco La Blasca, Francesca Fayer, Alberto D'Alcamo, Antonio Carroccio

Abstract

Background: Non-Celiac Wheat Sensitivity (NCWS) is still a largely undefined condition, due to the lack of a diagnostic marker. Few data are available about the nutritional characteristics of NCWS patients at diagnosis.

Aims: To evaluate the proportion of NCWS patients who were underweight, normal weight, overweight, or obese at diagnosis, and to search for possible correlations between their Body Mass Index (BMI) and other NCWS-related disease characteristics.

Patients and methods: The clinical charts of 145 NCWS patients (125 F, 20 M, mean age 37.1 ± 11.4 years), diagnosed between January 2012 and March 2018, were reviewed. As a comparison, 84 celiac disease (CD) patients (73 F, 11 M, mean age 39.8 ± 13.9 years) were evaluated. All NCWS diagnoses were based on a double-blind placebo-controlled wheat challenge (DBPCWC) method.

Results: BMI distribution was similar in the NCWS (6.2% underweight and 15.2% obese subjects) and CD patients (6% underweight and 7.1% obese subjects). Underweight NCWS subjects were significantly younger and had a shorter clinical history than the overweight or obese ones. Unlike the other NCWS patients, none of them had a DQ2 and/or DQ8 haplotype. Overweight and obese NCWS patients were more frequently suffering from associated autoimmune diseases than the other BMI categories (P = 0.05). Compared to the CD controls, NCWS patients showed a higher frequency of Irritable Bowel Syndrome (IBS)-like (P = 0.01) and extraintestinal symptoms (P = 0.03) and a longer clinical history (P = 0.04), whereas weight loss was more frequent in CD (P = 0.02).

Conclusions: NCWS patients showed a BMI distribution similar to CD patients. However, NCWS was found to be a heterogenous condition that regards BMI, and clinical characteristics differed between the underweight and overweight/obese patients.

Keywords: Body Mass Index (BMI); Celiac Disease (CD); HLA haplotype; Irritable Bowel Syndrome (IBS); autoimmune diseases; non-celiac wheat sensitivity (NCWS).

Conflict of interest statement

The Authors have no conflicts to declare.

Figures

Figure 1
Figure 1
Distribution of underweight, normal weight, overweight and obese subjects in the non-celiac wheat sensitivity (NCWS) and celiac disease (CD) study patients.

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