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KMID : 1812020220280020276
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Journal of Neurogastroenterology and Motility
2022 Volume.28 No. 2 p.276 ~ p.282
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Association Between Body Mass Index and Functional Dyspepsia in Young Japanese People
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Yamamoto Yasunori
Furukawa Shinya
Watanabe Junichi
Kato Aki
Kusumoto Katsunori
Takeshita Eiji
Ikeda Yoshio
Yamamoto Naofumi
Kohara Katsuhiko
Saeki Yuka
Hiasa Yoichi
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Abstract
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Background/Aims: Evidence regarding the association between body mass index (BMI) and functional dyspepsia (FD) in the Asian population is limited. Further, no study has evaluated this issue in young people in Asian and Western populations. Thus, we aim to investigate this issue among young Japanese people.
Methods: The study subjects comprised of 8923 Japanese university students. BMI was divided into 4 categories (quartiles) on the basis of the study subjects’ distribution (lowest, low, moderate, and high [reference]). The definition of lean, normal, overweight, and obese was BMI < 18.5 kg/m2, 18.5 ≤ BMI < 25 kg/m2 (reference), 25 kg/m2 ≤ BMI < 30 kg/m2, and 30 kg/m2 ≤ BMI, respectively. The definition of FD was based on the Rome III criteria.
Results: The prevalence of FD was 1.9% in this cohort. The lowest BMI was independently associated with FD after adjustment (adjusted odds ratio [OR], 2.88; 95% confidence interval [CI], 1.46-3.67); P for trend = 0.001). The lowest BMI was independently associated with FD in women but not in men (OR, 2.94; 95% CI, 1.59-5.77; P for trend = 0.001). Leanness was independently associated with FD in total and in women but not in men (total: adjusted OR, 2.01; 95% CI, 1.40-2.86) and women (OR, 2.19; 95% CI, 1.35-3.45). However, interaction analysis showed no significant difference for sex.
Conclusions: Among young Japanese people, BMI may be independently inversely associated with FD. Leanness may be an independent associated factor for FD in the young Japanese women.
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KEYWORD
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Body mass index, Functional dyspepsia, Gender, Young
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