TABLE 3.

The association between dichotomous variables and FI-Lab groups (N = 753).

Variables	Frailty status group by FI-LAB score								P (for trend)
	Robust (N = 181)		Mildly frail (N = 188)		Moderately frail (N = 185)		Severely frail (N = 199)
	N	%	N	%	N	%	N	%
Socio-demographic
Gender (female) [n (%)]	147	81.2	136	72.3	126	68.1	120	60.3	0.004
Family status (married) [n (%)]	75	41.4	85	45.2	70	37.8	87	43.7	0.389
Nursing caregiver (yes) [n (%)] (mis = 43)	99	57.6	104	59.1	106	60.6	129	69.0	0.069
Medical status
Depression [n (%)]	19	10.5	14	7.4	22	11.9	16	8.0	0.747
Delirium [n (%)]	25	13.8	29	15.4	30	16.2	39	19.6	0.204
Any complication [n (%)]	76	42	103	54.8	107	57.8	120	60.3	0.004
Functional status
Patients with MRFS-R ≥ 50 [n (%)]	133	73.5	136	72.3	124	67	69	65.3	0.094
Discharged to LCT [n (%)]	10	5.7	13	7.2	4	2.4	7	4.1	0.231

MRFS-R, the Montebello Rehabilitation Factor Score-Revised; LTC, long-term care; mis, missing.