uu.seUppsala University Publications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Malnutrition is associated with increased mortality in older adults regardless of the cause of death
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Public Health and Caring Sciences, Clinical Nutrition and Metabolism.ORCID iD: 0000-0002-8367-1189
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland.ORCID iD: 0000-0003-3691-8326
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland.
2017 (English)In: British Journal of Nutrition, ISSN 0007-1145, E-ISSN 1475-2662, Vol. 117, no 4, 532-540 p.Article in journal (Refereed) Published
Abstract [en]

Malnutrition predicts preterm death, but whether this is valid irrespective of the cause of death is unknown. The aim of the present study was to determine whether malnutrition is associated with cause-specific mortality in older adults. This cohort study was conducted in Sweden and included 1767 individuals aged >= 65 years admitted to hospital in 2008-2009. On the basis of the Mini Nutritional Assessment instrument, nutritional risk was assessed as well nourished (score 24-30), at risk of malnutrition (score 17-23.5) or malnourished (score < 17). Cause of death was classified according to the International Statistical Classification of Diseases and Related Health Problems, 10th Revision, into twenty different causes of death. Data were analysed using Cox proportional hazards regression models. At baseline, 55.1% were at risk of malnutrition, and 9.4% of the participants were malnourished. During a median follow-up of 5.1 years, 839 participants (47.5%) died. The multiple Cox regression model identified significant associations (hazard ratio (HR)) between malnutrition and risk of malnutrition, respectively, and death due to neoplasms (HR 2.43 and 1.32); mental or behavioural disorders (HR 5.73 and 5.44); diseases of the nervous (HR 4.39 and 2.08), circulatory (HR 1.95 and 1.57) or respiratory system (HR 2.19 and 1.49); and symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (HR 2.23 and 1.43). Malnutrition and risk of malnutrition are associated with increased mortality regardless of the cause of death, which emphasises the need for nutritional screening to identify older adults who may require nutritional support in order to avoid preterm death.

Place, publisher, year, edition, pages
2017. Vol. 117, no 4, 532-540 p.
Keyword [en]
cause-specific mortality, malnutrition, Mini Nutritional Assessment, malnutrition, older adults, survival analysis
National Category
Nutrition and Dietetics
Research subject
Nutrition
Identifiers
URN: urn:nbn:se:uu:diva-267556DOI: 10.1017/S0007114517000435ISI: 000399336800006PubMedID: 28290264OAI: oai:DiVA.org:uu-267556DiVA: diva2:873590
Funder
Swedish National Board of Health and Welfare, 11132/2011
Available from: 2015-11-24 Created: 2015-11-24 Last updated: 2017-05-15Bibliographically approved
In thesis
1. Nutritional Screening of Older Adults: Risk Factors for and Consequences of Malnutrition
Open this publication in new window or tab >>Nutritional Screening of Older Adults: Risk Factors for and Consequences of Malnutrition
2016 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Aims The overall aim of this thesis was to extend current knowledge about the prevalence of malnutrition, to identify possible risk factors for development of malnutrition, and to describe the consequences of malnutrition in relation to all-cause and cause-specific mortality among older adults admitted to hospital.

Methods The prevalence of malnutrition was estimated in a cohort of 1771 older adults (≥65 years) who were admitted to a Swedish hospital during 2008–2009 (15 months) and screened for malnutrition using the Mini Nutritional Assessment (MNA) instrument. Possible risk factors for malnutrition were recorded during the hospital stay (Study I). Dietary intake 10 years earlier (in 1997) was collected for 725 of these older adults (Study II). All-cause (Study III) and cause-specific (Study IV) mortality were followed up after medians of 3.5 and 5.1 years, respectively, for 1767 of the participants.

Results The prevalence of malnutrition was 9.4% while 55.1% were at risk of malnutrition. Risk factors for malnutrition was an overnight fast >11 hours, <4 eating episodes a day, and not cooking independently. In middle-aged and older adults with a body mass index <25 kg/m2 in 1997, the risk of malnutrition increased for each additional percentage point of energy from total, saturated and monounsaturated fat at follow-up after 10 years. Malnourished older adults had almost four times higher risk of death during follow-up, while those at risk of malnutrition had a 56% higher risk, compared to well-nourished. Furthermore, well-nourished older adults had consistently lower risk of death, regardless of the cause of death.

Conclusions Only 35.5% of older adults admitted to hospital were well-nourished. The identified risk factors could be used in interventions aimed at preventing malnutrition. Normal-weight and underweight middle-aged and older adults should consider limiting the intake of total fat and/or improve the quality of the fat in the diet in order to decrease the risk of becoming malnourished later in life. Malnutrition and risk of malnutrition were associated with increased overall and cause-specific mortality. These relationships emphasize the need for nutritional screening to identify individuals who may require nutritional support in order to avoid preterm death.

Place, publisher, year, edition, pages
Uppsala: Acta Universitatis Upsaliensis, 2016. 83 p.
Series
Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Medicine, ISSN 1651-6206 ; 1167
Keyword
Epidemiology, Malnutrition, Mortality, Older adults, Prevalence, Risk factors
National Category
Medical and Health Sciences Geriatrics
Research subject
Nutrition; Geriatrics
Identifiers
urn:nbn:se:uu:diva-267564 (URN)978-91-554-9435-3 (ISBN)
Public defence
2016-02-26, Vårdskolans aula, ing. 21, Västmanlands sjukhus Västerås, Västerås, 09:15 (Swedish)
Opponent
Supervisors
Available from: 2016-01-15 Created: 2015-11-24 Last updated: 2016-02-12

Open Access in DiVA

No full text

Other links

Publisher's full textPubMed

Authority records BETA

Söderström, LisaRosenblad, AndreasThors Adolfsson, EvaBergkvist, Leif

Search in DiVA

By author/editor
Söderström, LisaRosenblad, AndreasThors Adolfsson, EvaBergkvist, Leif
By organisation
Clinical Nutrition and MetabolismCentre for Clinical Research, County of Västmanland
In the same journal
British Journal of Nutrition
Nutrition and Dietetics

Search outside of DiVA

GoogleGoogle Scholar

doi
pubmed
urn-nbn

Altmetric score

doi
pubmed
urn-nbn
Total: 326 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf