Same-sex relationship

Same-sex relationship decreases cognitive decline in humans (β = -0.10 vs. -0.18; p < 0.01).

“The SSR group with dementia had less steep decline in attention/working memory (β estimates = -0.10 versus -0.18; p < 0.01).”

Humansdementia

Cognitive Aging with Dementia, Mild Cognitive Impairment, or No Impairment: A Comparison of Same- and Mixed-Sex Couples

Journal of Alzheimer's disease : JAD·Jan 1, 2023

Same-sex relationship decreases functional impairment in humans (FAQ M = 2.61, SD = 3.18 vs. M = 3.97, SD = 4.53; p < 0.01).

“People in SSR with mild cognitive impairment showed less functional impairment at baseline (FAQ M = 2.61, SD = 3.18 vs. M = 3.97, SD = 4.53, respectively; p < 0.01).”

Humansmild cognitive impairment

Cognitive Aging with Dementia, Mild Cognitive Impairment, or No Impairment: A Comparison of Same- and Mixed-Sex Couples

Journal of Alzheimer's disease : JAD·Jan 1, 2023

Same-sex relationship decreases rate of cognitive decline in humans (β = 0.066; p = 0.003).

“though having slower rates of cognitive decline when SSR was interacted with time (β = 0.066; p = 0.003)”

Humansinteracted with time

Cognitive Aging in Same- and Different-Sex Relationships: Comparing Age of Diagnosis and Rate of Cognitive Decline in the Health and Retirement Study

Gerontology·Dec 12, 2022

Same-sex relationship impairs cognitive function in humans (β = 0.745; p = 0.003).

“When adjusted for covariates, participants in SSRs also had lower cognition at baseline (β = 0.745; p = 0.003)”

Humansadjusted for covariates

Cognitive Aging in Same- and Different-Sex Relationships: Comparing Age of Diagnosis and Rate of Cognitive Decline in the Health and Retirement Study

Gerontology·Dec 12, 2022

Same-sex relationship decreases age at onset of cognitive impairment, not dementia in humans (β = -8.815; p < 0.001).

“crossed the threshold into CIND (β = -8.815; p < 0.001) and possible dementia (β = -13.388; p < 0.001) at a younger age than participants in DSRs”

Humans

Cognitive Aging in Same- and Different-Sex Relationships: Comparing Age of Diagnosis and Rate of Cognitive Decline in the Health and Retirement Study

Gerontology·Dec 12, 2022

Same-sex relationship decreases age at diagnosis of dementia in humans (β = -12.346; p = 0.001).

“Participants in SSRs reported dementia diagnoses (β = -12.346; p = 0.001)”

Humans

Cognitive Aging in Same- and Different-Sex Relationships: Comparing Age of Diagnosis and Rate of Cognitive Decline in the Health and Retirement Study

Gerontology·Dec 12, 2022