Document Detail


Association between vitamin D and pressure ulcers in older ambulatory adults: results of a matched case-control study.
MedLine Citation:
PMID:  21966215     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: Pressure ulcers are common among older adults, but knowledge about nutritional risk factors is still developing. Vitamin D deficiency is common in the elderly population and is required for normal skin proliferation. The role of vitamin D in pressure ulceration and wound healing is not known. The purpose of this case-control study was to determine the association between vitamin D levels and pressure ulceration in an older community-dwelling cohort.
METHODS: All cases and controls were community-dwelling elderly older than 60 years in a primary care panel in Olmsted County, MN. Pressure ulcer cases were defined clinically. The controls were age-matched and gender-matched to controls without pressure ulceration. The main exposure variable was 25-hydroxyvitamin D levels in both groups. The other exposure variable was the Charlson Comorbidity Index used to measure medical comorbidity. The analysis included univariate and conditional logistic regression for 25-hydroxyvitamin D levels.
RESULTS: The average (standard deviation) age of the study participants with a pressure ulcer was 80.46 years (±8.67), and the average vitamin D level was 30.92 ng/mL (±12.46). In univariate analysis, Vitamin D deficiency (levels < 25 ng/mL) was associated with pressure ulcers (odds ratio: 1.871, P = 0.0154). Comorbidities of the subjects calculated using the Charlson Comorbidity Index were also associated with pressure ulcers (odds ratio: 1.136, P < 0.001). In the final conditional logistical regression model, the association of Vitamin D and pressure ulcers became nonsignificant after adjustment for comorbid illness.
CONCLUSION: Medical comorbidities increased the risk of pressure ulceration. Vitamin D deficiency was not an independent risk factor for pressure ulceration, and may be a marker of comorbid illness.
Authors:
Usha R Kalava; Stephen S Cha; Paul Y Takahashi
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't     Date:  2011-08-02
Journal Detail:
Title:  Clinical interventions in aging     Volume:  6     ISSN:  1178-1998     ISO Abbreviation:  Clin Interv Aging     Publication Date:  2011  
Date Detail:
Created Date:  2011-10-03     Completed Date:  2012-01-11     Revised Date:  2012-04-27    
Medline Journal Info:
Nlm Unique ID:  101273480     Medline TA:  Clin Interv Aging     Country:  New Zealand    
Other Details:
Languages:  eng     Pagination:  213-9     Citation Subset:  IM    
Affiliation:
Department of Internal Medicine, Division of Primary Care Internal Medicine, Mayo Clinic, Rochester, MN, USA.
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MeSH Terms
Descriptor/Qualifier:
Age Distribution
Aged
Aged, 80 and over
Aging / physiology*
Case-Control Studies
Comorbidity
Female
Humans
Male
Middle Aged
Minnesota / epidemiology
Pilot Projects
Pressure Ulcer / blood,  epidemiology*,  physiopathology
Risk Factors
Vitamin D / analogs & derivatives*,  blood
Vitamin D Deficiency / blood,  epidemiology*,  physiopathology
Wound Healing / physiology*
Chemical
Reg. No./Substance:
1406-16-2/Vitamin D; 64719-49-9/25-hydroxyvitamin D
Comments/Corrections

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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