1.Visceral Obesity as a Risk Factor for Left-Sided Diverticulitis in Japan: A Multicenter Retrospective Study.
Eiji YAMADA ; Hidenori OHKUBO ; Takuma HIGURASHI ; Eiji SAKAI ; Hiroki ENDO ; Hirokazu TAKAHASHI ; Eri UCHIDA ; Emi TANIDA ; Nobuyoshi IZUMI ; Akira KANESAKI ; Yasuo HATA ; Tetsuya MATSUURA ; Nobutaka FUJISAWA ; Kazuto KOMATSU ; Shin MAEDA ; Atsushi NAKAJIMA
Gut and Liver 2013;7(5):532-538
BACKGROUND/AIMS: Left-sided diverticulitis is increasing in Japan, and many studies report that left-sided diverticulitis is more likely to be severe. Therefore, it is important to identify the features and risk factors for left-sided diverticulitis. We hypothesized that left-sided diverticulitis in Japan is related to obesity and conducted a study of the features and risk factors for this disorder in Japan. METHODS: Right-sided diverticulitis and left-sided diverticulitis patients (total of 215) were compared with respect to background, particularly obesity-related factors to identify risk factors for diverticulitis. RESULTS: There were 166 (77.2%) right-sided diverticulitis patients and 49 (22.8%) left-sided diverticulitis patients. The proportions of obese patients (body mass index > or =25 kg/m2, p=0.0349), viscerally obese patients (visceral fat area > or =100 cm2, p=0.0019), patients of mean age (p=0.0003), and elderly patients (age > or =65 years, p=0.0177) were significantly higher in the left-sided-diverticulitis group than in the right-sided-diverticulitis group. The proportion of viscerally obese patients was significantly higher in the left-sided-diverticulitis group than in the left-sided-diverticulosis group (p=0.0390). CONCLUSIONS: This study showed that obesity, particularly visceral obesity, was a risk factor for left-sided diverticulitis in Japan.
Aged
;
Diverticulitis
;
Humans
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Japan
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Obesity
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Obesity, Abdominal
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Retrospective Studies
;
Risk Factors
Result Analysis
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