Table 3.

Comparison between lowest and highest delta Groningen Activities Restriction Scale (GARS) quartiles

	Delta GARS

	Quartile 1 (0%–<25%)	Quartile 2 (25%–<50%)	Quartile 3 (50%–<75%)	Quartile 4 (75%–100%)
GARS, median (IQR)^a
Baseline^b	33 (27 to 43)	25 (20 to 34)	30 (23 to 37)	30 (25 to 38)
Follow-up	29 (23 to 38)	26 (21 to 35)	33 (26 to 41)	41 (35 to 51)
Delta^b	−3 (−5 to −2)	0 (0 to 1)	3 (2 to 4)	9 (7 to 12)

eFI-U, median (IQR)
Baseline	0.16 (0.10 to 0.22)	0.14 (0.08 to 0.18)	0.16 (0.12 to 0.22)	0.18 (0.10 to 0.22)
Follow-up	0.18 (0.12 to 0.24)	0.16 (0.10 to 0.20)	0.18 (0.12 to 0.24)	0.18 (0.14 to 0.26)
Delta^b	0.02 (0.00 to 0.04)	0.02 (0.00 to 0.04)	0.02 (0.00 to 0.06)	0.02 (0.00 to 0.04)

Major medical events, n (%)^b	50 (13.0)	29 (10.0)	42 (11.6)	72 (20.5)

↵a The GARS and eFI–U were not normally distributed for any of the variables.
↵b P –value for trend: baseline GARS P = 0.029; delta GARS P <0.001; delta eFI–U P = 0.003; and major medical events P = 0.005. eFI-U = electronic Frailty Index — Utrecht. GARS = Groningen Activities Restriction Scale.