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The impact of cognitive functioning on mortality and the development of functional disability in older adults with diabetes: the second longitudinal study on aging.
BMC Geriatr. 2006 May 01; 6:8.BG

Abstract

BACKGROUND

For older adults without diabetes, cognitive functioning has been implicated as a predictor of death and functional disability for older adults and those with mild to severe cognitive impairment. However, little is known about the relationship between cognition functioning on mortality and the development of functional disability in late life for persons with diabetes. We examined the relative contribution of cognitive functioning to mortality and functional disability over a 2-year period in a sample of nationally representative older US adults with diabetes who were free from cognitive impairment through secondary data analyses of the Second Longitudinal Study of Aging (LSOA II).

METHODS

Participants included 559 US adults (232 males and 327 females) >or= 70 years old who had diabetes and who were free from cognitive impairment were examined using an adapted Telephone Interview of Cognitive Status (TICS), Activities of Daily Living (ADL), and Instrumental Activities of Daily Living (IADL).

RESULTS

Multivariate logistic regression was conducted to investigate the independent contribution of cognitive functioning to three mutually exclusive outcomes of death and two measures of functional disability status. The covariates included in the model were participants' sex, age, race, marital status, educational level, duration of diabetes, cardiovascular disease (CVD) status, and self-rated health. Persons with diabetes who had the lowest levels of cognitive functioning relative to the highest level of cognitive functioning had a greater odds of dying (AOR = 0.80, 95% CI = 0.67-0.96) or becoming disabled (AOR = 0.87, 95% CI = 0.78-0.97) compared to those people who were disability free.

CONCLUSION

Older adults with diabetes and low normal levels of cognition, yet within normal ranges, were approximately 20% more likely to die and 13% more likely to become disabled than those with higher levels of cognitive functioning over a 2-year period. Brief screening measures of cognitive functioning could be used to identify older adults with diabetes who are at increased risk for mortality and functional disability, as well as those who may benefit from interventions to prevent or minimize further disablement and declines in cognitive functioning.

Authors+Show Affiliations

Division of Adult and Community Health, Centers for Disease Control and Prevention, 4770 Buford Highway, NE,, MS K-66, Atlanta, GA 30328, USA. lmcguire@cdc.govNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

16650284

Citation

McGuire, Lisa C., et al. "The Impact of Cognitive Functioning On Mortality and the Development of Functional Disability in Older Adults With Diabetes: the Second Longitudinal Study On Aging." BMC Geriatrics, vol. 6, 2006, p. 8.
McGuire LC, Ford ES, Ajani UA. The impact of cognitive functioning on mortality and the development of functional disability in older adults with diabetes: the second longitudinal study on aging. BMC Geriatr. 2006;6:8.
McGuire, L. C., Ford, E. S., & Ajani, U. A. (2006). The impact of cognitive functioning on mortality and the development of functional disability in older adults with diabetes: the second longitudinal study on aging. BMC Geriatrics, 6, 8.
McGuire LC, Ford ES, Ajani UA. The Impact of Cognitive Functioning On Mortality and the Development of Functional Disability in Older Adults With Diabetes: the Second Longitudinal Study On Aging. BMC Geriatr. 2006 May 1;6:8. PubMed PMID: 16650284.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The impact of cognitive functioning on mortality and the development of functional disability in older adults with diabetes: the second longitudinal study on aging. AU - McGuire,Lisa C, AU - Ford,Earl S, AU - Ajani,Umed A, Y1 - 2006/05/01/ PY - 2006/02/06/received PY - 2006/05/01/accepted PY - 2006/5/3/pubmed PY - 2006/6/20/medline PY - 2006/5/3/entrez SP - 8 EP - 8 JF - BMC geriatrics JO - BMC Geriatr VL - 6 N2 - BACKGROUND: For older adults without diabetes, cognitive functioning has been implicated as a predictor of death and functional disability for older adults and those with mild to severe cognitive impairment. However, little is known about the relationship between cognition functioning on mortality and the development of functional disability in late life for persons with diabetes. We examined the relative contribution of cognitive functioning to mortality and functional disability over a 2-year period in a sample of nationally representative older US adults with diabetes who were free from cognitive impairment through secondary data analyses of the Second Longitudinal Study of Aging (LSOA II). METHODS: Participants included 559 US adults (232 males and 327 females) >or= 70 years old who had diabetes and who were free from cognitive impairment were examined using an adapted Telephone Interview of Cognitive Status (TICS), Activities of Daily Living (ADL), and Instrumental Activities of Daily Living (IADL). RESULTS: Multivariate logistic regression was conducted to investigate the independent contribution of cognitive functioning to three mutually exclusive outcomes of death and two measures of functional disability status. The covariates included in the model were participants' sex, age, race, marital status, educational level, duration of diabetes, cardiovascular disease (CVD) status, and self-rated health. Persons with diabetes who had the lowest levels of cognitive functioning relative to the highest level of cognitive functioning had a greater odds of dying (AOR = 0.80, 95% CI = 0.67-0.96) or becoming disabled (AOR = 0.87, 95% CI = 0.78-0.97) compared to those people who were disability free. CONCLUSION: Older adults with diabetes and low normal levels of cognition, yet within normal ranges, were approximately 20% more likely to die and 13% more likely to become disabled than those with higher levels of cognitive functioning over a 2-year period. Brief screening measures of cognitive functioning could be used to identify older adults with diabetes who are at increased risk for mortality and functional disability, as well as those who may benefit from interventions to prevent or minimize further disablement and declines in cognitive functioning. SN - 1471-2318 UR - https://www.unboundmedicine.com/medline/citation/16650284/The_impact_of_cognitive_functioning_on_mortality_and_the_development_of_functional_disability_in_older_adults_with_diabetes:_the_second_longitudinal_study_on_aging_ L2 - https://bmcgeriatr.biomedcentral.com/articles/10.1186/1471-2318-6-8 DB - PRIME DP - Unbound Medicine ER -