1. World Health Organization. WHO Director-General’s opening remarks at the media briefing on COVID-19 - 11 March 2020. Accessed August 31, 2020. https://www.who.int/dg/speeches/detail/who-director-general-s-opening-remarks-at-the-media-briefing-on-covid-19---11-march-2020 2. Ligne du temps COVID-19 au Québec. INSPQ. Accessed August 19, 2021. https://www.inspq.qc.ca/covid-19/donnees/ligne-du-temps 3. Vahia IV, Jeste DV, Reynolds CF. Older Adults and the Mental Health Effects of COVID-19. JAMA. 2020;324(22):2253. doi:10.1001/jama.2020.21753 4. Dohrenwend BP, Dohrenwend BS. Perspectives on the past and future of psychiatric epidemiology. The 1981 Rema Lapouse Lecture. Am J Public Health. 1982;72(11):1271-1279. 5. Riehm KE, Holingue C, Smail EJ, et al. Trajectories of Mental Distress Among U.S. Adults During the COVID-19 Pandemic. Ann Behav Med. 2021;55(2):93-102. doi:10.1093/abm/kaaa126 6. Shamblaw AL, Rumas RL, Best MW. Coping during the COVID-19 pandemic: Relations with mental health and quality of life. Can Psychol Can. 2021;62(1):92-100. doi:10.1037/cap0000263 7. Daly M, Robinson E. Anxiety reported by US adults in 2019 and during the 2020 COVID-19 pandemic: Population-based evidence from two nationally representative samples. J Affect Disord. 2021;286:296-300. doi:10.1016/j.jad.2021.02.054 8. Fancourt D, Steptoe A, Bu F. Trajectories of anxiety and depressive symptoms during enforced isolation due to COVID-19 in England: a longitudinal observational study. Lancet Psychiatry. 2021;8(2):141-149. doi:10.1016/S2215-0366(20)30482-X 9. Daly M, Sutin AR, Robinson E. Depression reported by US adults in 2017–2018 and March and April 2020. J Affect Disord. 2021;278:131-135. doi:10.1016/j.jad.2020.09.065 10. Breslau J, Finucane ML, Locker AR, Baird MD, Roth EA, Collins RL. A longitudinal study of psychological distress in the United States before and during the COVID-19 pandemic. Prev Med Int J Devoted Pract Theory. 2021;143. 11. Riehm KE, Brenneke SG, Adams LB, et al. Association between psychological resilience and changes in mental distress during the COVID-19 pandemic. J Affect Disord. 2021;282:381-385. doi:10.1016/j.jad.2020.12.071 12. Sterina E, Hermida AP, Gerberi DJ, Lapid MI. Emotional Resilience of Older Adults during COVID-19: A Systematic Review of Studies of Stress and Well-Being. Clin Gerontol. 2021;0(0):1-16. doi:10.1080/07317115.2021.1928355 13. Creese B, Khan Z, Henley W, et al. Loneliness, physical activity, and mental health during COVID-19: a longitudinal analysis of depression and anxiety in adults over the age of 50 between 2015 and 2020. Int Psychogeriatr. 2021;33(5):505-514. doi:10.1017/S1041610220004135 14. Fadila DES, Ibrahim FM, El-Gilany AH. Psychological distress among older adults during covid-19 pandemic: Prevalence and associated factors. Geriatr Nurs N Y N. Published online 2021. Accessed January 1, 6AD. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8231069/ 15. Sams N, Fisher DM, Mata-Greve F, et al. Understanding Psychological Distress and Protective Factors Amongst Older Adults During the COVID-19 Pandemic. Am J Geriatr Psychiatry. 2021;29(9):881-894. doi:10.1016/j.jagp.2021.03.005 16. Holingue C, Badillo-Goicoechea E, Riehm KE, et al. Mental distress during the COVID-19 pandemic among US adults without a pre-existing mental health condition: Findings from American trend panel survey. Prev Med. 2020;139:106231. doi:10.1016/j.ypmed.2020.106231 17. Kim HH soo, Jung JH. Social Isolation and Psychological Distress During the COVID-19 Pandemic: A Cross-National Analysis. The Gerontologist. 2021;61(1):103-113. doi:10.1093/geront/gnaa168 18. Caron J, Fleury MJ, Perreault M, et al. Prevalence of psychological distress and mental disorders, and use of mental health services in the epidemiological catchment area of Montreal South-West. BMC Psychiatry. 2012;12(1):183. doi:10.1186/1471-244X-12-183 19. Regier DA, Farmer ME, Rae DS, et al. One-month prevalence of mental disorders in the United States and sociodemographic characteristics: the Epidemiologic Catchment Area study. Acta Psychiatr Scand. 1993;88(1):35-47. doi:10.1111/j.1600-0447.1993.tb03411.x 20. Armstrong P, Armstrong H. Is there a future for nursing homes in Canada? Healthc Manage Forum. 2022;35(1):17-20. doi:10.1177/08404704211037788 21. Abbasi J. Social isolation—the other COVID-19 threat in nursing homes. Jama. 2020;324(7):619-620. 22. News · VS· C. Quebec “cast aside” seniors in long-term care, needs to make changes now, ombudsman says | CBC News. CBC. Published November 23, 2021. Accessed April 29, 2022. https://www.cbc.ca/news/canada/montreal/quebec-ombudsman-recommendations-1.6259391 23. Canada PHA of. Aging and chronic diseases: A profile of Canadian seniors. Published July 14, 2021. Accessed April 29, 2022. https://www.canada.ca/en/public-health/services/publications/diseases-conditions/aging-chronic-diseases-profile-canadian-seniors-report.html 24. Davison KM, Lung Y, Lin S (Lamson), Tong H, Kobayashi KM, Fuller-Thomson E. Psychological distress in older adults linked to immigrant status, dietary intake, and physical health conditions in the Canadian Longitudinal Study on Aging (CLSA). J Affect Disord. 2020;265:526-537. doi:10.1016/j.jad.2020.01.024 25. Wang Y, Fu P, Li J, et al. Changes in psychological distress before and during the COVID-19 pandemic among older adults: the contribution of frailty transitions and multimorbidity. Age Ageing. 2021;50(4):1011-1018. doi:10.1093/ageing/afab061 26. Bobes-Bascarán T, Sáiz PA, Velasco A, et al. Early Psychological Correlates Associated With COVID-19 in A Spanish Older Adult Sample. Am J Geriatr Psychiatry. 2020;28(12):1287-1298. doi:10.1016/j.jagp.2020.09.005 27. Préville M, Boyer R, Vasiliadis HM, et al. Persistence and Remission of Psychiatric Disorders in the Quebec Older Adult Population. Can J Psychiatry. 2010;55(8):514-522. doi:10.1177/070674371005500806 28. Howley F, Lavan A, Connolly E, McMahon G, Mehmood M, Briggs R. Trends in emergency department use by older people during the COVID-19 pandemic. Eur Geriatr Med. 2021;12(6):1159-1167. doi:10.1007/s41999-021-00536-x 29. The Impact Of Coronavirus On Global Activity. Fitbit Blog. Published March 24, 2020. Accessed May 2, 2022. https://blog.fitbit.com/covid-19-global-activity/ 30. Woodruff SJ, Coyne P, St-Pierre E. Stress, physical activity, and screen-related sedentary behaviour within the first month of the COVID-19 pandemic. Appl Psychol Health Well-Being. 2021;13(2):454-468. doi:10.1111/aphw.12261 31. Visser M, Schaap LA, Wijnhoven HAH. Self-Reported Impact of the COVID-19 Pandemic on Nutrition and Physical Activity Behaviour in Dutch Older Adults Living Independently. Nutrients. 2020;12(12):3708. doi:10.3390/nu12123708 32. Landi F, Abbatecola AM, Provinciali M, et al. Moving against frailty: does physical activity matter? Biogerontology. 2010;11(5):537-545. doi:10.1007/s10522-010-9296-1 33. Devaraj S, Patel PC. Change in psychological distress in response to changes in reduced mobility during the early 2020 COVID-19 pandemic: Evidence of modest effects from the U.S. Soc Sci Med. 2021;270:113615. doi:10.1016/j.socscimed.2020.113615 34. Voyer P, Cohen D, Lauzon S, Collin J. Factors associated with psychotropic drug use among community-dwelling older persons: A review of empirical studies. BMC Nurs. 2004;3(1):3. doi:10.1186/1472-6955-3-3 35. Stall NM, Zipursky JS, Rangrej J, et al. Assessment of Psychotropic Drug Prescribing Among Nursing Home Residents in Ontario, Canada, During the COVID-19 Pandemic. JAMA Intern Med. 2021;181(6):861-863. doi:10.1001/jamainternmed.2021.0224 36. García-Fernández L, Romero-Ferreiro V, López-Roldán PD, Padilla S, Rodriguez-Jimenez R. Mental Health in Elderly Spanish People in Times of COVID-19 Outbreak. Am J Geriatr Psychiatry. 2020;28(10):1040-1045. doi:10.1016/j.jagp.2020.06.027 37. Paul C, Ayis S, Ebrahim S. Psychological distress, loneliness and disability in old age. Psychol Health Med. 2006;11(2):221-232. doi:10.1080/13548500500262945 38. Hidalgo JLT, Gras CB, García YD, Lapeira JT, del Campo del Campo JM, Verdejo MÁL. Functional status in the elderly with insomnia. Qual Life Res. 2006;16(2):279. doi:10.1007/s11136-006-9125-9 39. Brigola AG, Manzini CSS, Oliveira GBS, Ottaviani AC, Sako MP, Vale FAC. Subjective memory complaints associated with depression and cognitive impairment in the elderly: A systematic review. Dement Neuropsychol. 2015;9:51-57. doi:10.1590/S1980-57642015DN91000009 40. Zaninotto P, Iob E, Demakakos P, Steptoe A. Immediate and Longer-Term Changes in the Mental Health and Well-being of Older Adults in England During the COVID-19 Pandemic. JAMA Psychiatry. 2022;79(2):151-159. doi:10.1001/jamapsychiatry.2021.3749 41. Kotwal AA, Holt‐Lunstad J, Newmark RL, et al. Social Isolation and Loneliness Among San Francisco Bay Area Older Adults During the COVID‐19 Shelter‐in‐Place Orders. J Am Geriatr Soc. Published online September 23, 2020:10.1111/jgs.16865. doi:10.1111/jgs.16865 42. Foley DJ, Monjan AA, Brown SL, Simonsick EM, Wallace RB, Blazer DG. Sleep Complaints Among Elderly Persons: An Epidemiologic Study of Three Communities. Sleep. 1995;18(6):425-432. doi:10.1093/sleep/18.6.425 43. Morin CM, Carrier J, Bastien C, Godbout R, On behalf of the Canadian Sleep and Circadian Network. Sleep and circadian rhythm in response to the COVID-19 pandemic. Can J Public Health. 2020;111(5):654-657. doi:10.17269/s41997-020-00382-7 44. Grossman ES, Hoffman YSG, Palgi Y, Shrira A. COVID-19 related loneliness and sleep problems in older adults: Worries and resilience as potential moderators. Personal Individ Differ. 2021;168:110371. doi:10.1016/j.paid.2020.110371 45. Alimoradi Z, Broström A, Tsang HWH, et al. Sleep problems during COVID-19 pandemic and its’ association to psychological distress: A systematic review and meta-analysis. EClinicalMedicine. 2021;36:100916. doi:10.1016/j.eclinm.2021.100916 46. Santos AT dos, Leyendecker DD, Costa ALS, Souza-Talarico JN de. Subjective memory complain in healthy elderly: influence of depressive symptoms, perceived stress and self-esteem. Rev Esc Enferm USP. 2012;46(SPE):24-29. 47. Bay E, Kalpakjian C, Giordani B. Determinants of subjective memory complaints in community-dwelling adults with mild-to-moderate traumatic brain injury. Brain Inj. 2012;26(7-8):941-949. doi:10.3109/02699052.2012.666365 48. Feter N, Caputo EL, Smith EC, et al. Association between physical activity and subjective memory decline triggered by the COVID-19 pandemic: Findings from the PAMPA cohort. Prev Med. 2021;145:106415. doi:10.1016/j.ypmed.2020.106415 49. Carlos AF, Poloni TE, Caridi M, et al. Life during COVID-19 lockdown in Italy: the influence of cognitive state on psychosocial, behavioral and lifestyle profiles of older adults. Aging Ment Health. 2022;26(3):534-543. doi:10.1080/13607863.2020.1870210 50. Jungmann SM, Witthöft M. Health anxiety, cyberchondria, and coping in the current COVID-19 pandemic: Which factors are related to coronavirus anxiety? J Anxiety Disord. 2020;73:102239. doi:10.1016/j.janxdis.2020.102239 51. Zhou Y, MacGeorge EL, Myrick JG. Mental Health and Its Predictors during the Early Months of the COVID-19 Pandemic Experience in the United States. Int J Environ Res Public Health. 2020;17(17):E6315. doi:10.3390/ijerph17176315 52. Holingue C, Kalb LG, Riehm KE, et al. Mental distress in the United States at the beginning of the COVID-19 pandemic. Am J Public Health. 2020;110(11):1628-1634. 53. Taylor S, Paluszek MM, Landry CA, Rachor GS, Asmundson GJG. Predictors of distress and coping during pandemic-related self isolation: The relative importance of personality traits and beliefs about personal threat. Personal Individ Differ. 2021;176:110779. doi:10.1016/j.paid.2021.110779 54. Bridgland VME, Moeck EK, Green DM, et al. Why the COVID-19 pandemic is a traumatic stressor. PLOS ONE. 2021;16(1):e0240146. doi:10.1371/journal.pone.0240146 55. Cooke JE, Eirich R, Racine N, Madigan S. Prevalence of posttraumatic and general psychological stress during COVID-19: A rapid review and meta-analysis. Psychiatry Res. 2020;292:113347. doi:10.1016/j.psychres.2020.113347 56. Hoffman Y, Shrira A, Bodner E. PTSD symptoms, daily subjective age, and psychological distress in community-dwelling older adults. GeroPsych J Gerontopsychology Geriatr Psychiatry. 20210225;34(4):179. doi:10.1024/1662-9647/a000256 57. Lahav Y. Psychological distress related to COVID-19 – The contribution of continuous traumatic stress. J Affect Disord. 2020;277:129-137. doi:10.1016/j.jad.2020.07.141 58. Newkirk LA, Kim JM, Thompson JM, Tinklenberg JR, Yesavage JA, Taylor JL. Validation of a 26-point telephone version of the Mini-Mental State Examination. J Geriatr Psychiatry Neurol. 2004;17(2):81-87. 59. Tombaugh TN, McIntyre NJ. The Mini-Mental State Examination: A Comprehensive Review. J Am Geriatr Soc. 1992;40(9):922-935. doi:10.1111/j.1532-5415.1992.tb01992.x 60. Kessler RC, Andrews G, Colpe LJ, et al. Short screening scales to monitor population prevalences and trends in non-specific psychological distress. Psychol Med. 2002;32(6):959-976. doi:10.1017/S0033291702006074 61. Prochaska JJ, Sung H, Max W, Shi Y, Ong M. Validity study of the K6 scale as a measure of moderate mental distress based on mental health treatment need and utilization. Int J Methods Psychiatr Res. 2012;21(2):88-97. doi:10.1002/mpr.1349 62. Morin CM, Belleville G, Bélanger L, Ivers H. The Insomnia Severity Index: psychometric indicators to detect insomnia cases and evaluate treatment response. Sleep. 2011;34(5):601-608. 63. Hughes ME, Waite LJ, Hawkley LC, Cacioppo JT. A short scale for measuring loneliness in large surveys: Results from two population-based studies. Res Aging. 2004;26(6):655-672. 64. Clément F, Belleville S, Gauthier S. Cognitive complaint in mild cognitive impairment and Alzheimer’s disease. J Int Neuropsychol Soc. 2008;14(2):222-232. 65. Kellner R. Somatization and Hypochondriasis. Greenwood; 1986. 66. Kellner R, Abbott P, Winslow WW, Pathak D. Fears, beliefs, and attitudes in DSM-III hypochondriasis. J Nerv Ment Dis. Published online 1987. 67. Ruggiero KJ, Del Ben K, Scotti JR, Rabalais AE. Psychometric properties of the PTSD Checklist—Civilian version. J Trauma Stress. 2003;16(5):495-502. 68. Wilkins KC, Lang AJ, Norman SB. Synthesis of the psychometric properties of the PTSD checklist (PCL) military, civilian, and specific versions. Depress Anxiety. 2011;28(7):596-606. 69. La pauvreté des personnes de 55 ans et plus au Québec: du travail à la retraite. :78. 70. Group TE. EuroQol-a new facility for the measurement of health-related quality of life. Health Policy. 1990;16(3):199-208. 71. Nagin DS. Group-Based Trajectory Modeling: An Overview. Ann Nutr Metab. 2014;65(2-3):205-210. doi:10.1159/000360229 72. Nagin D. Group-Based Modeling of Development. Harvard University Press; 2009. 73. Nielsen JD. Group-Based Modelling of Longitudinal Data.; 2018. https://cran.r-project.org/web/packages/crimCV/crimCV.pdf 74. Sirri L, Grandi S, Fava GA. The illness attitude scales. Psychother Psychosom. 2008;77(6):337-350. 75. Ripley B, Venables W. Feed-Forward Neural Networks and Multinomial Log-Linear Models.; 2021. https://cran.r-project.org/web/packages/nnet/nnet.pdf 76. McGinty EE, Presskreischer R, Anderson KE, Han H, Barry CL. Psychological Distress and COVID-19-Related Stressors Reported in a Longitudinal Cohort of US Adults in April and July 2020. JAMA. 2020;324(24):2555-2557. doi:10.1001/jama.2020.21231 77. Daly M, Sutin AR, Robinson E. Longitudinal changes in mental health and the COVID-19 pandemic: evidence from the UK Household Longitudinal Study. Psychol Med. Published online November 13, 2020:1-10. doi:10.1017/S0033291720004432 78. Gray NS, O’Connor C, Knowles J, et al. The Influence of the COVID-19 Pandemic on Mental Well-Being and Psychological Distress: Impact Upon a Single Country. Front Psychiatry. 2020;11:594115. doi:10.3389/fpsyt.2020.594115 79. Raina P, Wolfson C, Griffith L, et al. A longitudinal analysis of the impact of the COVID-19 pandemic on the mental health of middle-aged and older adults from the Canadian Longitudinal Study on Aging. Nat Aging. 2021;1(12):1137-1147. 80. Krendl AC, Perry BL. The Impact of Sheltering in Place During the COVID-19 Pandemic on Older Adults’ Social and Mental Well-Being. J Gerontol Ser B. 2021;76(2):e53-e58. doi:10.1093/geronb/gbaa110 81. Losada-Baltar A, Jiménez-Gonzalo L, Gallego-Alberto L, Pedroso-Chaparro M del S, Fernandes-Pires J, Márquez-González M. “We Are Staying at Home.” Association of Self-perceptions of Aging, Personal and Family Resources, and Loneliness With Psychological Distress During the Lock-Down Period of COVID-19. Issacowitz D, ed. J Gerontol Ser B. Published online April 13, 2020:gbaa048. doi:10.1093/geronb/gbaa048 82. Trabelsi K, Ammar A, Masmoudi L, et al. Sleep quality and physical activity as predictors of mental wellbeing variance in older adults during COVID-19 lockdown: ECLB COVID-19 international online survey. Int J Environ Res Public Health. 2021;18(8):4329. 83. Coiro MJ, Asraf K, Tzischinsky O, Hadar-Shoval D, Tannous-Haddad L, Wolfson AR. Sleep quality and COVID-19-related stress in relation to mental health symptoms among Israeli and U.S. adults. Sleep Health. 2021;7(2):127-133. doi:10.1016/j.sleh.2021.02.006 84. Sauer KS, Jungmann SM, Witthöft M. Emotional and behavioral consequences of the COVID-19 pandemic: The role of health anxiety, intolerance of uncertainty, and distress (in) tolerance. Int J Environ Res Public Health. 2020;17(19):7241. 85. Irwin MR, Carrillo C, Sadeghi N, Bjurstrom MF, Breen EC, Olmstead R. Prevention of Incident and Recurrent Major Depression in Older Adults With Insomnia: A Randomized Clinical Trial. JAMA Psychiatry. Published online 2021. 86. Cooper K, Gregory JD, Walker I, Lambe S, Salkovskis PM. Cognitive behaviour therapy for health anxiety: A systematic review and meta-analysis. Behav Cogn Psychother. 2017;45(2):110-123. 87. Van Orden KA, Bower E, Lutz J, et al. Strategies to promote social connections among older adults during “social distancing” restrictions. Am J Geriatr Psychiatry. 2021;29(8):816-827. 88. Finlay JM, Kler JS, O’Shea BQ, Eastman MR, Vinson YR, Kobayashi LC. Coping During the COVID-19 Pandemic: A Qualitative Study of Older Adults Across the United States. Front Public Health. 2021;9:643807. doi:10.3389/fpubh.2021.643807 89. Gouvernement du Québec. Stress, anxiété et déprime associés à la COVID-19. Accessed January 24, 2022. https://www.quebec.ca/sante/problemes-de-sante/a-z/coronavirus-2019/stress-anxiete-et-deprime-associes-a-la-maladie-a-coronavirus-covid-19 90. Hirvensalo M, Rantanen T, Heikkinen E. Mobility difficulties and physical activity as predictors of mortality and loss of independence in the community‐living older population. J Am Geriatr Soc. 2000;48(5):493-498. 91. Rosso AL, Taylor JA, Tabb LP, Michael YL. MOBILITY, DISABILITY, AND SOCIAL ENGAGEMENT IN OLDER ADULTS. J Aging Health. 2013;25(4):617-637. doi:10.1177/0898264313482489 92. Legters K. Fear of falling. Phys Ther. 2002;82(3):264-272. 93. Aubertin-Leheudre M, Rolland Y. The Importance of Physical Activity to Care for Frail Older Adults During the COVID-19 Pandemic. J Am Med Dir Assoc. 2020;21(7):973-976. doi:10.1016/j.jamda.2020.04.022 94. Bruce ML, Pepin R, Marti CN, Stevens CJ, Choi NG. One Year Impact on Social Connectedness for Homebound Older Adults: Randomized Controlled Trial of Tele-delivered Behavioral Activation Versus Tele-delivered Friendly Visits. Am J Geriatr Psychiatry Off J Am Assoc Geriatr Psychiatry. 2021;29(8):771-776. doi:10.1016/j.jagp.2021.05.005