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	Indeks Niezależności Katz w Czynnościach Życiowych (ADL)	Skala Kruchości Klinicznej (CFS)
Dziedzina	Pielęgniarstwo	Pielęgniarstwo
Rodzina	Process / pipeline	Process / pipeline
Rok powstania	1963	2005
Twórca	Sidney Katz	Kenneth Rockwood
Typ	Clinician-rated or observational functional assessment	Clinician-rated frailty assessment
Źródło pierwotne	Katz, S., Ford, A. B., Moskowitz, R. W., Jackson, B. A., & Jaffe, M. W. (1963). Studies of Illness in the Aged: The Index of ADL, a standardized measure of biological and psychosocial function. JAMA, 185(12), 914-919.	Rockwood, K., Song, X., MacKnight, C., et al. (2005). A global clinical measure of fitness and frailty in elderly people. CMAJ, 173(5), 489-495.
Inne nazwy	Katz Index, Katz ADL Scale, Index of ADL	CFS, Frailty Scale, Clinical Frailty Assessment
Pokrewne	3	3
Podsumowanie	The Katz Index of Independence in Activities of Daily Living, developed by Sidney Katz and colleagues in 1963, is one of the earliest and most widely used tools for assessing functional status in older adults and persons with chronic illness. The scale evaluates six essential self-care activities (bathing, dressing, toileting, transfer, continence, feeding) through direct observation or interview and assigns an overall grade (A through G) reflecting the degree of independence. It remains a foundational instrument in geriatric assessment, rehabilitation medicine, and long-term care settings.	The Clinical Frailty Scale (CFS), developed by Kenneth Rockwood and colleagues in 2005, is a brief, validated tool for assessing frailty in older adults. Frailty—a syndrome of diminished physiologic reserve, increased vulnerability, and reduced functional ability—is recognized as a distinct clinical state that predicts mortality, disability, and healthcare utilization independent of age and comorbidities. The CFS uses a seven-point (or nine-point in later versions) clinical judgment-based scale, making it practical and rapid for bedside use in hospitals, clinics, and long-term care.