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Appetite:老人胃口好 死亡远离他

  1. 死亡率
  2. 老年人
  3. 胃口
  4. 食欲

来源:生物谷 2014-09-12 09:37

近日,来自澳洲莫纳斯大学的研究人员通过研究表示,食欲(胃口)或可有效改善老年人的身体健康状况,帮助降低其死亡的风险,相关研究成果发表于国际杂志Appetite上。

2014年9月12日 讯 /生物谷BIOON/ --近日,来自澳洲莫纳斯大学的研究人员通过研究表示,食欲(胃口)或可有效改善老年人的身体健康状况,帮助降低其死亡的风险,相关研究成果发表于国际杂志Appetite上。

研究者Mark Wahlqvist教授说道,食欲一般被认为是指示机体健康的重要指示器,而老年人往往对食物的冲动会发生明显降低,很多老年个体都会产生厌食症,而咀嚼困难及药物的副作用也会明显抑制老年人的食欲,家庭的事件及其它环境因子也会影响老年人的食欲。

不同的因子叠加在一起就会引发老年人的食欲降低,进而降低其健康程度,研究者发现,相比胃口较好的老年人来讲,胃口较差的老年个体的死亡风险往往较高。这项研究中,研究人员对1800多名65岁以上的台湾老年人进行研究发现,那些食欲较差的个体往往饮食多样性较差,伴随着机体摄入的能量、蛋白质及维生素等营养物的水平就相应降低了。

研究者表示,食欲是死亡率的一个可靠的指示器,食欲较差同样也可以指示个体的疾病及机体障碍的发生。深入揭示老年人的食欲下降机制或许可以有效帮助改善其机体的健康状况,进而为降低其死亡提供一定的线索和帮助。(生物谷Bioon.com)

Appetite predicts mortality in free-living older adults in association with dietary diversity. A NAHSIT cohort study

Yi-Chen Huanga, Mark L. Wahlqvistb, c, d, Meei-Shyuan Leea.

This study aimed to assess the predictive ability of appetite for mortality among representative free-living Taiwanese older adults. A total of 1856 participants aged 65 years or over from the Elderly Nutrition and Health Survey during 1999–2000 completed an appetite question in a larger questionnaire. Personal information was obtained by face-to-face interview at baseline, together with a 24-hour dietary recall and simplified food frequency questionnaire which provided a dietary diversity score and food intake frequency. Survivorship was ascertained from the Death Registry until December 31, 2008. Participants with a poor appetite had lower dietary diversity scores (DDS) and intake frequencies of meat, fish and sea food, egg, vegetable and fruit intake, along with lower energy, protein, vitamin B-1, niacin, iron and phosphate intakes. Those who had fair and poor appetites had a higher risk of all-cause mortality compared to those with good appetite, with hazard ratios (HR) (95% confidence interval, CI) of 1.28 (1.03–1.58) and 2.27 (1.71–3.02), respectively. After adjustment for confounders, the HRs (95% CI) were 1.05 (0.83–1.33) and 1.50 (1.03–2.18), respectively. With further adjustment for DDS or general health these HRs became non-significant. The joint HR (95% CI) for “DDS ≤ 4 and poor appetite” was 1.77 (1.04–3.00) compared to “DDS > 4 and good appetite” as referent. Poor appetite is associated with lower food and nutrient intakes and an independent risk for mortality in older Taiwanese. In conclusion, appetite is separate, mediated by general health and modulated by dietary quality in its predictive capacity for mortality.

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