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Atopic dermatitis is associated with abnormal stool form: a population-based cross-sectional study in college
Juan Su1,2, Xiaoyu Gu1,2, Ji Li1
1Department of Dermatology, Hunan Key Laboratory of Skin Cancer and Psoriasis, Hunan Engineering Research Center of Skin Health and Disease, Xiangya Hospital, Central South University, 110 Xiangya Road, Changsha, 410008, Hunan, China.
Archives of Dermatological Research
|March 14, 2023
Summary
Atopic dermatitis (AD) is linked to abnormal stool consistency, particularly hard stools. Dietary factors may influence this association in individuals with AD.
Area of Science:
- Dermatology
- Gastroenterology
- Epidemiology
Background:
- Atopic dermatitis (AD) is a prevalent chronic inflammatory skin condition.
- The Bristol Stool Form Scale (BSFS) assesses stool consistency, indirectly reflecting intestinal function.
Purpose of the Study:
- To investigate the association between atopic dermatitis (AD) and abnormal stool forms using the Bristol Stool Form Scale (BSFS).
Main Methods:
- A population-based cross-sectional study involving 20,049 university freshmen in China.
- Atopic dermatitis (AD) was diagnosed by dermatologists; stool form (BSFS) and dietary data were collected via online surveys.
- Mixed logistic regression models were employed to analyze the associations, with subgroup analyses conducted.
Main Results:
- The prevalence of hard stools was 8.9% and loose stools was 7.6%.
- Atopic dermatitis (AD) showed significant associations with both hard stools (OR=1.38) and loose stools (OR=1.24).
- Subgroup analysis revealed that the association between AD and hard stools was stronger with specific dietary intakes (milk, yogurt, pork) and higher itch scores.
Conclusions:
- This study establishes a relationship between atopic dermatitis (AD) and abnormal stool forms.
- Dietary factors may modify the association between AD and hard stools, suggesting a potential gut-skin axis connection.
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