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炎症性腸疾患患者の全般的および中心的な肥満に関連した死亡リスク:長期的な前向きなコホート研究
Qian Zhang1, Yutao Wang1, Si Liu1
1Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, State Key Laboratory of Digestive Health, National Clinical Research Center for Digestive Disease, Beijing Key Laboratory of Early Gastrointestinal Cancer Medicine and Medical Devices, Beijing, China.
International journal of obesity (2005)
|August 25, 2025
まとめ
一般的な肥満ではなく,中心的な肥満と体重不足が炎症性腸疾患 (IBD) の患者の死亡リスクを増加させる. 腸内脂肪の管理と適切な栄養の確保は,IBD患者のアウトカムを改善するための鍵です.
科学分野:
- 胃腸内科
- 臨床流行病学
- 肥満に関する研究
背景:
- 炎症性腸疾患 (IBD) は,著しい罹病率と死亡率を持つ慢性疾患である.
- IBD患者の長期的結果に対する 肥満の一般的および中心的な影響については,さらなる明確化が必要である.
- 人体測定の危険因子を理解することは,患者の予後を改善するために不可欠です.
研究 の 目的:
- 一般的な肥満 (BMIによって定義される) と中心的な肥満 (複数の指標によって定義される) と,IBD患者の大群における全因死亡率との関連を調べる.
- IBDにおける異なる肥満現象型に関連した死亡リスクの区分
- IBDの長期生存を向上させるための変更可能な危険因子を特定する.
主な方法:
- IBD患者5107人を対象に前向きなコホート研究が行われました.
- 一般的な肥満はボディマス指数 (BMI) を用いて評価された.
- 中枢の肥満は,腰周長 (WC),腰と腰の比率 (WHR),体重調整された腰指数 (WWI),円度指数 (CI),およびA体形指数 (ABSI) を用いて評価された.
- すべての原因による死亡率が主なアウトカムで,コックスの比例リスクモデルを使用して,追跡期間の中央値は14. 6年であった.
主要な成果:
- 体重が低い患者 (BMIで定義される) は,BMIが正常な患者と比較して死亡リスクが2. 22倍増加しました.
- 一般的な肥満 (BMIで定義された過体重または肥満) と全因死亡率との間に有意な関連性は見つかりませんでした.
- WC,WHR,WWI,CI,ABSIの高い四分位数は,死亡率の上昇と有意に関連しており,投与量と反応の関係を示しています.
結論:
- 中央部での肥満と体重不足は IBD患者の全因死亡率の有意な予測因子ですが,一般的な肥満ではありません.
- これらの発見は,IBD患者の長期生存を向上させる上で,内臓肥満の減少と適切な栄養状態の重要な役割を強調しています.
- 体組成と栄養支援に焦点を当てた標的治療は,IBD患者の予後を改善する可能性があります.
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