TABLE 4.

Mortality and length of stay by change in frailty between evaluation and admission for KT (N = 569)

	Mortality, hazard ratio (95% CI)	Length of stay (≥2wk), OR (95% CI)
Stable nonfrail (ref)	1.00	1.00
Nonfrail to frail	1.60 (0.72–3.56)	1.43 (0.71–2.89)
Frail to nonfrail	1.24 (0.54–2.88)	0.71 (0.32–1.57)
Stable frail	1.58 (0.65–3.81)	1.68 (0.79–3.55)
Less frail	1.12 (0.54–2.31)	0.81 (0.44–1.48)
Stable category (ref)	1.00	1.00
More frail	2.27 (1.11–4.65)	2.02 (1.20–3.40)
Less frail	1.16 (0.55–2.44)	0.70 (0.40–1.21)
Stable fcore (ref)	1.00	1.00
More frail	2.36 (1.12–4.99)	1.92 (1.13–3.25)

All hazard ratios and ORs are adjusted for demographic factors (age, sex, black race, BMI), diabetes, y on dialysis, cause of ESRD, donor type (live/deceased). Length of stay additionally was adjusted for delayed graft failure for all exposures. Change within the 3 frailty categories was additionally adjusted for baseline frailty category, and change in frailty score was additionally adjusted for baseline frailty score. Bold indicates values that are statistically significant at a cutoff of P < 0.05.

BMI, body mass index; CI, confidence interval; ESRD, end-stage renal disease; KT, kidney transplantation; OR, odds ratio; ref, reference.