Perceived frailty and measured frailty among adults undergoing hemodialysis: a cross-sectional analysis

BMC Geriatrics

Table 3 Relationships between measured and perceived frailty

Perceived frailty	Measured frailty
	Non-frail, n (%)	Intermediately frail, n (%)	Frail, n (%)	Percent agreement	Kappa	Correlation
Nephrologist^a
Non-frail	21 (65.6)	20 (51.3)	15 (30.0)	64.1	0.24	0.32
Intermediately frail	7 (21.9)	11 (28.1)	14 (28.0)
Frail	4 (12.5)	8 (20.5)	21 (42.0)
Nurse Practitioner^b
Non-frail	21 (70.0)	9 (26.5)	11 (21.6)	67.0	0.27	0.35
Intermediately frail	5 (16.7)	13 (38.2)	20 (39.2)
Frail	4 (13.3)	12 (35.3)	20 (39.2)
Patient^c
Non-frail	26 (68.4)	23 (48.9)	32 (52.5)	55.5	0.07	0.09
Intermediately frail	10 (26.3)	21 (44.7)	26 (42.6)
Frail	2 (5.3)	3 (6.4)	3 (4.9)
Nurse practitioner ^b	Nephrologist ^a perceived frailty ^d
Perceived frailty	Non-frail, n (%)	Intermediately frail, n (%)	Frail, n (%)	Percent agreement	Kappa	Correlation
Non-frail	25 (51.0)	10 (32.3)	5 (16.7)	64.6	0.21	0.28
Intermediately frail	14 (28.6)	10 (32.3)	13 (43.3)
Frail	10 (20.4)	11 (35.5)	12 (40.0)

^aOf the 146 participants with measured frailty, 121 were rated by a nephrologist.
^bOf the 146 participants with measured frailty, 115 were rated by a nurse practitioner.
^cOf the 146 participants with measured frailty, 146 provided self-rated frailty.
^dOf the 146 participants, 110 participants were rated by both a nephrologist and a nurse practitioner.
Percents sum down columns. Thus, among participants who were non-frail based on measured frailty, 21.9% and 12.5% were misclassified as intermediately frail and frail by a nephrologist.

ISSN: 1471-2318