1. Park BJ, Lee YJ. Integrative approach to elderly frailty. Korean Journal of Family Medicine. 2010; 31(10):747–754. http://dx.doi.org/10.4082/kjfm.2010.31.10.747.
Article
2. Fried LP, Ferrucci L, Darer J, Williamson JD, Anderson G. Untangling the concepts of disability, frailty, and comorbidity: implications for improved targeting and care. The Journals of Gerontology Series A Biological Sciences and Medical Sciences. 2004; 59(3):255–263. http://dx.doi.org/10.1093/gerona/59.3.M255.
Article
3. Winograd CH, Gerety MB, Chung M, Goldstein MK, Domin-guez F Jr, Vallone R. Screening for frailty: criteria and predictors of outcomes. Journal of the American Geriatrics Society. 1991; 39(8):778–784. http://dx.doi.org/10.1111/j.1532-5415.1991.tb02700.x.
Article
4. Fried LP, Walston J. Frailty and failure to thrive. Hazzard WR, Blass JP, Ettinger WH, Haler JB, Ouslander J, editors. Principles of Geriatric Medicine and Gerontology. 4th ed. New York: McGraw Hill;1998. p. 309–319.
5. Morley JE, Vellas B, van Kan GA, Anker SD, Bauer JM, Ber-nabei R, et al. Frailty consensus: a call to action. Journal of the American Medical Directors Association. 2013; 14(6):392–397. http://dx.doi.org/10.1016/j.jamda.2013.03.022.
Article
6. Fulop T, Larbi A, Witkowski JM, McElhaney J, Loeb M, Mit-nitski A, et al. Aging, frailty and age-related diseases. Bio-gerontology. 2010; 11(5):547–563. http://dx.doi.org/10.1007/s10522-010-9287-2.
Article
7. Ahmed N, Mandel R, Fain MJ. Frailty: an emerging geriatric syndrome. The American Journal of Medicine. 2007; 120(9):748–753. http://dx.doi.org/10.1016/j.amjmed.2006.10.018.
Article
8. Kim CO, Lee HY, Ho SH, Park HS, Park CW. Effects of visiting prehabilitation program against functional decline in the frail elderly: a prospective randomized community trial. Journal of the Korea Gerontological Society. 2010; 30(4):1293–1309.
9. Ensrud KE, Ewing SK, Taylor BC, Fink HA, Stone KL, Cauley JA, et al. Frailty and risk of falls, fracture, and mortality in older women: the study of osteoporotic fractures. The Journals of Gerontology Series A Biological Sciences and Medical Sciences. 2007; 62(7):744–751. http://dx.doi.org/10.1093/gerona/62.7.744.
Article
10. McKenzie K, Ouellette-Kuntz H, Martin L. Frailty as a predictor of institutionalization among adults with intellectual and developmental disabilities. Intellectual & Developmental Disabilities. 2016; 54(2):123–135. http://dx.doi.org/10.1352/1934-9556-54.2.123.
Article
11. Kojima G. Frailty as a predictor of disabilities among community-dwelling older people: a systematic review and meta-analysis. Disability & Rehabilitation. 2017; 39(19):1897–1908. http://dx.doi.org/10.1080/09638288.2016.1212282.
Article
12. Kim HY. Physical functions, health-related quality of life and ego-integrity of the frail and non-frail elderly in a local community [master’s thesis]. Daegu: Keimyung University;2009. p. 1–65.
13. Strawbridge WJ, Shema SJ, Balfour JL, Higby HR, Kaplan GA. Antecedents of frailty over three decades in an older cohort. The Journals of Gerontology. Series B, Psychological Sciences and Social Sciences. 1998; 53(1):S9–S16. http://dx.doi.org/10.1093/geronb/53B.1.S9.
14. Morley JE, Haren MT, Rolland Y, Kim MJ. Frailty. Medical Clinics of North America. 2006; 90(5):837–847. http://dx.doi.org/10.1016/j.mcna.2006.05.019.
Article
15. Verbrugge LM, Jette AM. The disablement process. Social Science & Medicine. 1994; 38(1):1–14. http://dx.doi.org/10.1016/0277-9536(94)90294-1.
Article
16. Veronese N, Stubbs B, Noale M, Solmi M, Pilotto A, Vaona A, et al. Polypharmacy is associated with higher frailty risk in older people: an 8-year longitudinal cohort study. Journal of the American Medical Directors Association. 2017; 18(7):624–628. http://dx.doi.org/10.1016/j.jamda.2017.02.009.
Article
17. St John PD, Tyas SL, Montgomery PR. Depressive symptoms and frailty. International Journal of Geriatric Psychiatry. 2013; 28(6):607–614. http://dx.doi.org/10.1002/gps.3866.
18. Mezuk B, Edwards L, Lohman M, Choi M, Lapane K. Depression and frailty in later life: a synthetic review. International Journal of Geriatric Psychiatry. 2012; 27(9):879–892. http://dx.doi.org/10.1002/gps.2807.
Article
19. Boyle PA, Buchman AS, Wilson RS, Leurgans SE, Bennett DA. Physical frailty is associated with incident mild cognitive impairment in community-based older persons. Journal of American Geriatrics Society. 2010; 58(2):248–255. http://dx.doi.org/10.1111/j.1532-5415.2009.02671.x.
Article
20. Lawrence RH, Jette AM. Disentangling the disablement process. The Journals of Gerontology. Series B, Psychological Sciences and Social Sciences. 1996; 51(4):S173–S182. http://dx.doi.org/10.1093/geronb/51b.4.s173.
21. Sun WD, Song HJ, Lee YH, Kim DJ. Study on development of health care services and coordinated system for frail elderly people. Seoul: Institute for Health and Social Affairs;2004. p. 47–57.
22. Collard RM, Boter H, Schoevers RA, Oude Voshaar RC. Prevalence of frailty in community-dwelling older persons: a systematic review. Journal of the American Geriatrics Society. 2012; 60(8):1487–1492. http://dx.doi.org/10.1111/j.1532-5415.2012.04054.x.
Article
23. Kaufman SR. The social construction of frailty: an anthropological perspective. Journal of Aging Studies. 1994; 8(1):45–58. http://dx.doi.org/10.1016/0890-4065(94)90018-3.
Article
24. Ministry of Health & Welfare. Guidance of home visiting health care services in 2012. Sejong: Ministry of Health & Welfare;2012. p. 77–83.
25. Won CW, Rho YG, SunWoo D, Lee YS. The validity and reliability of Korean instrumental activities of daily living(K-IADL) scale. Journal of Korean Geriatrics Society. 2002; 6(4):273–280.
26. Colaizzi PF. Psychological research as the phenomenologist views it. Valle RS, Kings M, editors. Existential-Phenomenological Alternative for Psychology. New York: Oxford Uni- versity Press;1978. p. 48–71.
27. Guba EG, Lincoln YS. Effective evaluation. 4th ed. San Francisco: Jossey & Bass Publication;1985. p. 1–423.
28. Yeom JH. A comparison study of Self-Rated Health (SRH) trajectory between urban and rural older adults: using latent growth modeling. The Journal of Rural Society. 2013; 23(1):193–239.
29. Artaza-Artabe I, Sáez-López P, Sánchez-Hernández N, Fernández-Gutierrez N, Malafarina V. The relationship between nutrition and frailty: effects of protein intake, nutritional supplementation, vitamin D and exercise on muscle metabolism in the elderly. A systematic review. Maturitas. 2016; 93:89–99. http://dx.doi.org/10.1016/j.maturitas.2016.04.009.
Article
30. Walston J, McBurnie MA, Newman A, Tracy RP, Kop WJ, Hirsch CH, et al. Frailty and activation of the inflammation and coagulation systems with and without clinical comorbidities: results from the Cardiovascular Health Study. Archives of Internal Medicine. 2002; 162(20):2333–2341. http://dx.doi.org/10.1001/archinte.162.20.2333.
31. Newman BM, Newman PR. Development through life: a psychosocial approach. California: Brooks Cole Publishing Company;1991. p. 513–551.
32. Sok SH, Kim KB. A comparative study of depression and quality of life in Korean elderly women based on the Sasan-gin constitution. Journal of East-West Nursing Research. 2010; 16(2):138–146.
33. Campbell AJ, Buchner DM. Unstable disability and the fluctuations of frailty. Age and Ageing. 1997; 26(4):315–318. http://dx.doi.org/10.1093/ageing/26.4.315.
Article