A multidisciplinary systematic literature review on frailty: Overview of the methodology used by the Canadian Initiative on Frailty and Aging

Table 3 Quality assessments and definitional classifications of articles selected for the reviews

Questions	Number of articles included for quality assessment	Quality Assessment		Classification of definition
		1-2	3-4	Vulnerability Physio-logical	Vulnerability Complex	Vulnerability Geriatric	Disability	Setting/Source	Other
Biological basis	81	55	26	12	3	7	10	10	39
Social basis	74	9	65	1	7	4	62	0	0
Prevalence	55*	9	46	7	4	9	32	0	3
Risk factors	88	13	75	2	4	7	63	0	12
Impact	34	3	31	1	1	7	20	1	4
Identification	24	16	8	2	3	5	6	1	7
Prevention & Management	48*	4	44	1	0	11	4	14	18
Environment & Technology	65†	15	39	0	0	5	19	17	24

* These articles were rated on a scale from 1-3 (poor, fair, good). Articles that were rated "poor" are presented in the 1-2 category and articles rated as "fair" or "good" are presented in the 3-4 category.
† 11 of these articles had study designs that could not be evaluated with any of the CIFA quality assessment tools.

ISSN: 1471-2288