1. Nicolaisen M, Thorsen K. Who are lonely? Loneliness in different age groups (18-81 years old), using two measures of loneliness. Int J Aging Hum Dev. 2014;78(3):229-57. [
Link] [
DOI:10.2190/AG.78.3.b]
2. Kim J, Park GR. Prolonged social isolation and cognitive function in older adults: Lack of informal social contact versus formal social activity as the source of social isolation. Aging Ment Health. 2023;27(12):2438-45. [
Link] [
DOI:10.1080/13607863.2023.2202616]
3. Kobayashi LC, Steptoe A. Social isolation, loneliness, and health behaviors at older ages: Longitudinal cohort study. Ann Behav Med. 2018;52(7):582-93. [
Link] [
DOI:10.1093/abm/kax033]
4. Holt-Lunstad J, Smith TB, Baker M, Harris T, Stephenson D. Loneliness and social isolation as risk factors for mortality: A meta-analytic review. Perspect Psychol Sci. 2015;10(2):227-37. [
Link] [
DOI:10.1177/1745691614568352]
5. Beller J, Wagner A. Loneliness, social isolation, their synergistic interaction, and mortality. Health Psychol. 2018;37(9):808-13. [
Link] [
DOI:10.1037/hea0000605]
6. McLay L, Jamieson HA, France KG, Schluter PJ. Loneliness and social isolation is associated with sleep problems among older community dwelling women and men with complex needs. Sci Rep. 2021;11(1):4877. [
Link] [
DOI:10.1038/s41598-021-83778-w]
7. Reher D, Requena M. Living alone in later life: A global perspective. Popul Dev Rev. 2018;44(3):427-54. [
Link] [
DOI:10.1111/padr.12149]
8. Kaplan DB. Older adults living alone [Internet]. Rahway, NJ: MSD Manuals. 2023 Apr [cited 2023; April]. Available from: https://www.msdmanuals.com/professional/geriatrics/social-issues-in-older-adults/older-adults-living-alone [
Link]
9. De Medeiros MMD, Carletti TM, Magno MB, Maia LC, Cavalcanti YW, Rodrigues-Garcia RCM. Does the institutionalization influence elderly's quality of life? A systematic review and meta-analysis. BMC Geriatr. 2020;20(1):44. [
Link] [
DOI:10.1186/s12877-020-1452-0]
10. Khosravan S, Alaviani M, Alami A, Tavakolizadeh J. Epidemiology of loneliness in elderly women. J Res Health. 2014;4(4):871-7. [
Link]
11. Tani M, Cheng Z, Piracha M, Wang B. Ageing, health, loneliness and wellbeing. Soc Indic Res. 2020;160(2-3):791-807. [
Link] [
DOI:10.1007/s11205-020-02450-4]
12. Teh JKL, Tey NP, Ng ST. Family support and loneliness among older persons in multiethnic Malaysia. Sci World J. 2014;2014:654382. [
Link] [
DOI:10.1155/2014/654382]
13. WHO. Abuse of older people [Internet]. Geneva: World Health Organization. 2022 Jun 13 [cited June 15, 2022]. Available from: https://www.who.int/news-room/fact-sheets/detail/abuse-of-older-people [
Link]
14. Fakoya OA, McCorry NK, Donnelly M. Loneliness and social isolation interventions for older adults: A scoping review of reviews. BMC Public Health. 2020;20(1):129. [
Link] [
DOI:10.1186/s12889-020-8251-6]
15. Cho JHJ, Olmstead R, Choi H, Carrillo C, Seeman TE, Irwin MR. Associations of objective versus subjective social isolation with sleep disturbance, depression, and fatigue in community-dwelling older adults. Aging Ment Health. 2019;23(9):1130-8. [
Link] [
DOI:10.1080/13607863.2018.1481928]
16. Wakefield JRH, Bowe M, Kellezi B, Butcher A, Groeger JA. Longitudinal associations between family identification, loneliness, depression, and sleep quality. Br J Health Psychol. 2020;25(1):1-16. [
Link] [
DOI:10.1111/bjhp.12391]
17. Medic G, Wille M, Hemels MEH. Short- and long-term health consequences of sleep disruption. Nat Sci Sleep. 2017;9:151-61. [
Link] [
DOI:10.2147/NSS.S134864]
18. Morin CM, Jarrin DC. Epidemiology of insomnia: Prevalence, course, risk factors, and public health burden. Sleep Med Clin. 2022;17(2):173-91. [
Link] [
DOI:10.1016/j.jsmc.2022.03.003]
19. Choi EPH, Wan EYF, Kwok JYY, Chin WY, Lam CLK. The mediating role of sleep quality in the association between nocturia and health-related quality of life. Health Qual Life Outcomes. 2019;17(1):181. [
Link] [
DOI:10.1186/s12955-019-1251-5]
20. Watson NF, Badr MS, Belenky G, Bliwise DL, Buxton OM, Buysse D, et al. Recommended amount of sleep for a healthy adult: A joint consensus statement of the American Academy of Sleep Medicine and Sleep Research Society. Sleep. 2015;38(6):843-4. [
Link] [
DOI:10.5665/sleep.4716]
21. Etindele Sosso FA, Kreidlmayer M, Pearson D, Bendaoud I. Towards a socioeconomic model of sleep health among the Canadian population: A systematic review of the relationship between age, income, employment, education, social class, socioeconomic status and sleep disparities. Eur J Investig Health Psychol Educ. 2022;12(8):1143-67. [
Link] [
DOI:10.3390/ejihpe12080080]
22. De Feijter M, O'Connor MF, Arizmendi BJ, Ikram MA, Luik AI. The longitudinal association of actigraphy-estimated sleep with grief in middle-aged and elderly persons. J Psychiatr Res. 2021;137:66-72. [
Link] [
DOI:10.1016/j.jpsychires.2021.02.042]
23. You JC, Jones E, Cross DE, Lyon AC, Kang H, Newberg AB, et al. Association of β-amyloid burden with sleep dysfunction and cognitive impairment in elderly individuals with cognitive disorders. JAMA Netw Open. 2019;2(10):e1913383. [
Link] [
DOI:10.1001/jamanetworkopen.2019.13383]
24. Yang JJ, Cai H, Xia L, Nie W, Zhang Y, Wang S, et al. The prevalence of depressive and insomnia symptoms, and their association with quality of life among older adults in rural areas in China. Front Psychiatry. 2021;12:727939. [
Link] [
DOI:10.3389/fpsyt.2021.727939]
25. Mc Carthy CE. Sleep disturbance, sleep disorders and co-morbidities in the care of the older person. Med Sci. 2021;9(2):31. [
Link] [
DOI:10.3390/medsci9020031]
26. Strollo SE, Fallon EA, Gapstur SM, Smith TG. Cancer-related problems, sleep quality, and sleep disturbance among long-term cancer survivors at 9-years post diagnosis. Sleep Med. 2020;65:177-85. [
Link] [
DOI:10.1016/j.sleep.2019.10.008]
27. Gordon AM, Carrillo B, Barnes CM. Sleep and social relationships in healthy populations: A systematic review. Sleep Med Rev. 2021;57:101428. [
Link] [
DOI:10.1016/j.smrv.2021.101428]
28. Page MJ, Moher D, Bossuyt PM, Boutron I, Hoffmann TC, Mulrow CD, et al. PRISMA 2020 explanation and elaboration: Updated guidance and exemplars for reporting systematic reviews. BMJ. 2021;372:n160. [
Link] [
DOI:10.1136/bmj.n160]
29. Benson JA, McSorley VE, Hawkley LC, Lauderdale DS. Associations of loneliness and social isolation with actigraph and self-reported sleep quality in a national sample of older adults. Sleep. 2021;44(1):zsaa140. [
Link] [
DOI:10.1093/sleep/zsaa140]
30. Griffin SC, Williams AB, Mladen SN, Perrin PB, Dzierzewski JM, Rybarczyk BD. Reciprocal effects between loneliness and sleep disturbance in older Americans. J Aging Health. 2020;32(9):1156-64. [
Link] [
DOI:10.1177/0898264319894486]
31. Grossman ES, Hoffman YSG, Palgi Y, Shrira A. COVID-19 related loneliness and sleep problems in older adults: Worries and resilience as potential moderators. Pers Individ Dif. 2021;168:110371. [
Link] [
DOI:10.1016/j.paid.2020.110371]
32. Jia G, Yuan P. The association between sleep quality and loneliness in rural older individuals: A cross-sectional study in Shandong Province, China. BMC Geriatr. 2020;20(1):180. [
Link] [
DOI:10.1186/s12877-020-01554-3]
33. McHugh JE, Casey AM, Lawlor BA. Psychosocial correlates of aspects of sleep quality in community-dwelling Irish older adults. Aging Ment Health. 2011;15(6):749-55. [
Link] [
DOI:10.1080/13607863.2011.562180]
34. McHugh JE, Lawlor BA. Perceived stress mediates the relationship between emotional loneliness and sleep quality over time in older adults. Br J Health Psychol. 2013;18(3):546-55. [
Link] [
DOI:10.1111/j.2044-8287.2012.02101.x]
35. Peng A, Tang Y, He S, Ji S, Dong B, Chen L. Association between loneliness, sleep behavior and quality: A propensity-score-matched case-control study. Sleep Med. 2021;86:19-24. [
Link] [
DOI:10.1016/j.sleep.2021.08.008]
36. Shankar A. Loneliness and sleep in older adults. Social psychiatry and psychiatric epidemiology. 2020;55(2):269-72. [
Link] [
DOI:10.1007/s00127-019-01805-8]
37. Yao KW, Yu S, Cheng SP, Chen IJ. Relationships between personal, depression and social network factors and sleep quality in community-dwelling older adults. J Nurs Res. 2008;16(2):131-9. [
Link] [
DOI:10.1097/01.JNR.0000387298.37419.ff]
38. Yu B, Steptoe A, Niu K, Ku PW, Chen LJ. Prospective associations of social isolation and loneliness with poor sleep quality in older adults. Qual Life Res. 2018;27(3):683-91. [
Link] [
DOI:10.1007/s11136-017-1752-9]
39. Wong A, Chau AKC, Fang Y, Woo J. Illuminating the psychological experience of elderly loneliness from a societal perspective: A qualitative study of alienation between older people and society. Int J Environ Res Public Health. 2017;14(7):824. [
Link] [
DOI:10.3390/ijerph14070824]
40. Esmaeilzadeh S, Oz F. Effect of psychosocial care model applied in an "elderly day care center" on loneliness, depression, quality of life, and elderly attitude. Niger J Clin Pract. 2020;23(2):189-97. [
Link] [
DOI:10.4103/njcp.njcp_366_19]
41. Pandya SP. Meditation program mitigates loneliness and promotes wellbeing, life satisfaction and contentment among retired older adults: A two-year follow-up study in four South Asian cities. Aging Ment Health. 2021;25(2):286-98. [
Link] [
DOI:10.1080/13607863.2019.1691143]
42. Shorey S, Chan V. The experiences and needs of Asian older adults who are socially isolated and lonely: A qualitative systematic review. Arch Gerontol Geriatr. 2021;92:104254. [
Link] [
DOI:10.1016/j.archger.2020.104254]
43. Ojembe BU, Ebe Kalu M. Describing reasons for loneliness among older people in Nigeria. J Gerontol Soc Work. 2018;61(6):640-58. [
Link] [
DOI:10.1080/01634372.2018.1487495]
44. Wu B. Social isolation and loneliness among older adults in the context of COVID-19: A global challenge. Glob Health Res Policy. 2020;5:27. [
Link] [
DOI:10.1186/s41256-020-00154-3]
45. Christiansen J, Larsen FB, Lasgaard M. Do stress, health behavior, and sleep mediate the association between loneliness and adverse health conditions among older people?. Soc Sci Med. 2016;152:80-6. [
Link] [
DOI:10.1016/j.socscimed.2016.01.020]
46. Gerst-Emerson K, Jayawardhana J. Loneliness as a public health issue: the impact of loneliness on health care utilization among older adults. Am J Public Health. 2015;105(5):1013-9. [
Link] [
DOI:10.2105/AJPH.2014.302427]
47. Crewdson JA. The effect of loneliness in the elderly population: A review. Healthy Aging Clin Care Elder. 2016;8:1-8. [
Link] [
DOI:10.4137/HACCE.S35890]
48. Yanguas J, Pinazo-Henandis S, Tarazona-Santabalbina FJ. The complexity of loneliness. Acta Biomedica. 2018;89(2):302-14. [
Link]
49. Petitte T, Mallow J, Barnes E, Petrone A, Barr T, Theeke L. A systematic review of loneliness and common chronic physical conditions in adults. Open Psychol J. 2015;8(Suppl 2):113-32. [
Link] [
DOI:10.2174/1874350101508010113]
50. Antonelli-Salgado T, Monteiro GMC, Marcon G, Roza TH, Zimerman A, Hoffmann MS, et al. Loneliness, but not social distancing, is associated with the incidence of suicidal ideation during the COVID-19 outbreak: A longitudinal study. J Affect Disord. 2021;290:52-60. [
Link] [
DOI:10.1016/j.jad.2021.04.044]
51. McClelland H, Evans JJ, Nowland R, Ferguson E, O'Connor RC. Loneliness as a predictor of suicidal ideation and behaviour: A systematic review and meta-analysis of prospective studies. J Affect Disord. 2020;274:880-96. [
Link] [
DOI:10.1016/j.jad.2020.05.004]
52. Tkach E. Psychological features of the relationship of personality resilience and subjective feelings of loneliness. E3S Web Conf. 2021;284(107):08022. [
Link] [
DOI:10.1051/e3sconf/202128408022]
53. Chen L, Alston M, Guo W. The influence of social support on loneliness and depression among older elderly people in China: Coping styles as mediators. J Community Psychol. 2019;47(5):1235-45. [
Link] [
DOI:10.1002/jcop.22185]
54. Galiana L, Tomás JM, Fernández I, Oliver A. Predicting well-being among the elderly: The role of coping strategies. Front Psychol. 2020;11:00616. [
Link] [
DOI:10.3389/fpsyg.2020.00616]
55. Shen S, Wan Y, Xie Y, Chen Z, Li F. Care stress experienced by caregivers of elderly individuals with disabilities and the coping strategies utilized: A survey study in the city of Nanjing, China. J Fam Issues. 2019;40(10):1396-414. [
Link] [
DOI:10.1177/0192513X19841659]
56. Liu R, Shao W, Lai JK, Zhou L, Ren M, Sun N. Identification of comprehensive geriatric assessment-based risk factors for insomnia in elderly Chinese hospitalized patients. Aging Med. 2021;4(1):26-34. [
Link] [
DOI:10.1002/agm2.12146]
57. Suh SW, Han JW, Han JH, Bae J Bin, Moon W, Kim HS, et al. Sex differences in subjective age-associated changes in sleep: A prospective elderly cohort study. Aging. 2020;12(21):21942-58. [
Link] [
DOI:10.18632/aging.104016]
58. Garbarino S, Lanteri P, Sannita WG, Bragazzi NL, Scoditti E. Circadian rhythms, sleep, immunity, and fragility in the elderly: The model of the susceptibility to infections. Front Neurol. 2020;11:558417. [
Link] [
DOI:10.3389/fneur.2020.558417]
59. Song J, Wang C, Ma A, Zheng H, Zheng W, Hou X, et al. Self-reported snoring is associated with chronic kidney disease independent of metabolic syndrome in middle-aged and elderly Chinese. J Diabetes Investig. 2019;10(1):124-30. [
Link] [
DOI:10.1111/jdi.12855]
60. Kay DB, Karim HT, Hasler BP, James JA, Germain A, Hall MH, et al. Impact of acute sleep restriction on cerebral glucose metabolism during recovery non-rapid eye movement sleep among individuals with primary insomnia and good sleeper controls. Sleep Med. 2019;55:81-91. [
Link] [
DOI:10.1016/j.sleep.2018.12.007]
61. Tubbs AS. The mind after midnight: Nocturnal wakefulness and the answers project [dissertation]. Tucson: The University of Arizona; 2021. [
Link]
62. Zhang R, Tomasi D, Manza P, Shokri-Kojori E, Demiral SB, Feldman DE, et al. Sleep disturbances are associated with cortical and subcortical atrophy in alcohol use disorder. Transl Psychiatry. 2021;11(1):428. [
Link] [
DOI:10.1038/s41398-021-01534-0]
63. Shor E, Roelfs DJ, Yogev T. The strength of family ties: A meta-analysis and meta-regression of self-reported social support and mortality. Soc Netw. 2013;35(4):626-38. [
Link] [
DOI:10.1016/j.socnet.2013.08.004]