Holt-Lunstad J, et al. Social relationships and mortality risk: a meta-analytic review. PLoS Med. 2010;7:e1000316.(148研究・308,849人。つながりが強い人の生存のオッズ比 1.50。すべて観察研究)
Holt-Lunstad J, et al. Loneliness and social isolation as risk factors for mortality: a meta-analytic review. Perspect Psychol Sci. 2015;10:227-37.
Kanamori S, et al. Social participation and the prevention of functional disability in older Japanese: the JAGES cohort study. PLoS One. 2014;9:e99638.(どの会にも参加しない人と比べ、3種類以上に参加する人の要介護 HR 0.57)
Saito T, et al. Influence of social relationship domains and their combinations on incident dementia: a prospective cohort study. J Epidemiol Community Health. 2018;72:7-12.(愛知県の13,984人・約9.4年。会への参加 HR 0.89。つながりの5項目がそろう人は、最も少ない人より認知症が46%少ない。開始3年以内の認知症を除くと、会への参加は HR 0.91 で有意でなくなった)
Kanamori S, et al. Participation in sports organizations and the prevention of functional disability in older Japanese: the AGES Cohort Study. PLoS One. 2012;7:e51061.(スポーツの会に参加せず運動する人は、会に参加して運動する人に比べ要介護 HR 1.29)
Fujita K, et al. Frequency of going outdoors as a good predictors for incident disability of physical function as well as disability recovery in community-dwelling older adults in rural Japan. J Epidemiol. 2006;16:261-70.
Sakurai R, et al. Co-existence of social isolation and homebound status increase the risk of all-cause mortality. Int Psychogeriatr. 2019;31:703-11.
Hikichi H, et al. Social interaction and cognitive decline: results of a 7-year community intervention. Alzheimers Dement (N Y). 2017;3:23-32.(愛知県武豊町。観察研究)