TY - JOUR
T1 - Adherence to dietary guidelines positively affects quality of life and functional status of older adults
AU - Gopinath, Bamini
AU - Russell, Joanna
AU - Flood, Vicki
AU - Burlutsky, George
AU - Mitchell, Paul
PY - 2014/2
Y1 - 2014/2
N2 - Background: Nutritional parameters could influence self-perceived health and functional status of older adults. Objective: We prospectively determined the association between diet quality and quality of life and activities of daily living. Design: This was an observational cohort study in which total diet scores, reflecting adherence to dietary guidelines, were determined. Dietary intakes were assessed using a food frequency questionnaire at baseline. Total diet scores were allocated for intake of selected food groups and nutrients for each participant as described in the Australian Guide to Healthy Eating. Higher scores indicated closer adherence to dietary guidelines. Participants/setting: In Sydney, Australia, 1,305 and 895 participants (aged ≥55 years) with complete data were examined over 5 and 10 years, respectively. Main outcome variables: The 36-Item Short-Form Survey assesses quality of life and has eight subscales representing dimensions of health and well-being; higher scores reflect better quality of life. Functional status was determined once at the 10-year follow-up by the Older Americans Resources and Services activities of daily living scale. This scale has 14 items: seven items assess basic activities of daily living (eg, eating and walking) and seven items assess instrumental activities of daily living (eg, shopping or housework). Statistical analyses performed: Normalized 36-Item Short-Form Survey component scores were used in analysis of covariance to calculate multivariable adjusted mean scores. Logistic regression analysis was used to calculate adjusted odds ratios and 95% CIs to demonstrate the association between total diet score with the 5-year incidence of impaired activities of daily living. Results: Participants in the highest vs lowest quartile of baseline total diet scores had adjusted mean scores 5.6, 4.0, 5.3, and 2.6 units higher in these 36-Item Short-Form Survey domains 5 years later: physical function (P trend=0.003), general health (P trend=0.02), vitality (P trend=0.001), and physical composite score (P trend=0.003), respectively. Participants in the highest vs lowest quartile of baseline total diet scores had 50% reduced risk of impaired instrumental activites of daily living at follow-up (multivariable-adjusted P trend=0.03). Conclusions: Higher diet quality was prospectively associated with better quality of life and functional ability.
AB - Background: Nutritional parameters could influence self-perceived health and functional status of older adults. Objective: We prospectively determined the association between diet quality and quality of life and activities of daily living. Design: This was an observational cohort study in which total diet scores, reflecting adherence to dietary guidelines, were determined. Dietary intakes were assessed using a food frequency questionnaire at baseline. Total diet scores were allocated for intake of selected food groups and nutrients for each participant as described in the Australian Guide to Healthy Eating. Higher scores indicated closer adherence to dietary guidelines. Participants/setting: In Sydney, Australia, 1,305 and 895 participants (aged ≥55 years) with complete data were examined over 5 and 10 years, respectively. Main outcome variables: The 36-Item Short-Form Survey assesses quality of life and has eight subscales representing dimensions of health and well-being; higher scores reflect better quality of life. Functional status was determined once at the 10-year follow-up by the Older Americans Resources and Services activities of daily living scale. This scale has 14 items: seven items assess basic activities of daily living (eg, eating and walking) and seven items assess instrumental activities of daily living (eg, shopping or housework). Statistical analyses performed: Normalized 36-Item Short-Form Survey component scores were used in analysis of covariance to calculate multivariable adjusted mean scores. Logistic regression analysis was used to calculate adjusted odds ratios and 95% CIs to demonstrate the association between total diet score with the 5-year incidence of impaired activities of daily living. Results: Participants in the highest vs lowest quartile of baseline total diet scores had adjusted mean scores 5.6, 4.0, 5.3, and 2.6 units higher in these 36-Item Short-Form Survey domains 5 years later: physical function (P trend=0.003), general health (P trend=0.02), vitality (P trend=0.001), and physical composite score (P trend=0.003), respectively. Participants in the highest vs lowest quartile of baseline total diet scores had 50% reduced risk of impaired instrumental activites of daily living at follow-up (multivariable-adjusted P trend=0.03). Conclusions: Higher diet quality was prospectively associated with better quality of life and functional ability.
KW - diet quality
KW - quality of life
KW - Blue Mountains Eye Study
KW - activities of daily living
KW - older adults
UR - http://www.scopus.com/inward/record.url?scp=84892500159&partnerID=8YFLogxK
U2 - 10.1016/j.jand.2013.09.001
DO - 10.1016/j.jand.2013.09.001
M3 - Article
C2 - 24239401
VL - 114
SP - 220
EP - 229
JO - Journal of the Academy of Nutrition and Dietetics
JF - Journal of the Academy of Nutrition and Dietetics
SN - 2212-2672
IS - 2
ER -