TY - JOUR
T1 - Does the impact of intensive lifestyle intervention on cognitive function vary depending baseline level of frailty? An ancillary study to the Action for Health in Diabetes (Look AHEAD) Trial
AU - Indices for Accelerated Aging in Obesity and Diabetes Ancillary Study of the Action for Health in Diabetes (Look AHEAD) Trial
AU - Simpson, Felicia R.
AU - Carmichael, Owen
AU - Hayden, Kathleen M.
AU - Hugenschmidt, Christina E.
AU - McCaffery, Jeanne M.
AU - Yasar, Sevil
AU - Pajewski, Nicholas M.
AU - Espeland, Mark A.
N1 - Funding Information:
Felicia R. Simpson: Conceptualization; Data curation; Formal analysis; Roles/Writing ? original draft. Owen Carmichael: Roles/Writing ? original draft; Writing ? review & editing. Kathleen M. Hayden: Roles/Writing ? original draft; Writing ? review & editing. Christina E. Hugenschmidt: Writing ? review & editing. Jeanne McCaffery: Writing ? review & editing. Sevil Yasar: Writing ? review & editing. Nicholas M. Pajewski: Methodology; Writing ? review & editing. Mark A. Espeland: Conceptualization; Funding acquisition; Methodology; Supervision; Roles/Writing ? original draft. This research was funded by two diversity supplements to the Action for Health in Diabetes Extension Study Biostatistics Research Center (3U01DK057136-19S1 and 3U01DK057136-19S2). The funding for the parent award is from U01DK057136. Additional funding sources and the Look AHEAD study group are listed in Supplemental Exhibit S4.
Publisher Copyright:
© 2021 Elsevier Inc.
PY - 2021/5
Y1 - 2021/5
N2 - Aims: To assess whether there is an opportune window when intensive lifestyle intervention (ILI) benefits cognitive function. Methods: Standardized cognitive assessments were collected following ≥8 years of either ILI or a control condition of diabetes support and education (DSE) in 3708 individuals, ages 45-76 years at enrollment, with type 2 diabetes and overweight or obesity. Frailty index (FI) scores were used to group individuals at baseline into tertiles according to their age-related health status. Linear models were used to describe intervention adherence and cognitive function, with interaction terms to examine the consistency of relationships among tertiles. Results: Worse baseline FI scores were associated with poorer subsequent performance in tests of attention, processing speed, and executive function. No differences in any measure of cognitive function were observed between intervention groups within any FI tertile (all p > 0.10). Among individuals with worse baseline FI scores, weight gain was associated with poorer global cognitive function among participants assigned to DSE. There was no association between weight changes and cognitive function among participants assigned to ILI. Conclusions: Among adults with type 2 diabetes and overweight/obesity, we found no evidence that there is a window of opportunity based on FI when ILI benefits cognitive function.
AB - Aims: To assess whether there is an opportune window when intensive lifestyle intervention (ILI) benefits cognitive function. Methods: Standardized cognitive assessments were collected following ≥8 years of either ILI or a control condition of diabetes support and education (DSE) in 3708 individuals, ages 45-76 years at enrollment, with type 2 diabetes and overweight or obesity. Frailty index (FI) scores were used to group individuals at baseline into tertiles according to their age-related health status. Linear models were used to describe intervention adherence and cognitive function, with interaction terms to examine the consistency of relationships among tertiles. Results: Worse baseline FI scores were associated with poorer subsequent performance in tests of attention, processing speed, and executive function. No differences in any measure of cognitive function were observed between intervention groups within any FI tertile (all p > 0.10). Among individuals with worse baseline FI scores, weight gain was associated with poorer global cognitive function among participants assigned to DSE. There was no association between weight changes and cognitive function among participants assigned to ILI. Conclusions: Among adults with type 2 diabetes and overweight/obesity, we found no evidence that there is a window of opportunity based on FI when ILI benefits cognitive function.
KW - Aging
KW - Cognitive function
KW - Intensive lifestyle intervention
KW - Obesity
KW - Type 2 diabetes mellitus
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U2 - 10.1016/j.jdiacomp.2021.107909
DO - 10.1016/j.jdiacomp.2021.107909
M3 - Article
C2 - 33745805
AN - SCOPUS:85102878833
SN - 1056-8727
VL - 35
JO - Journal of Diabetes and its Complications
JF - Journal of Diabetes and its Complications
IS - 5
M1 - 107909
ER -