Table 2.

Changes in functional status during hospitalization in total population stratified by iron status.

	Iron deficiency (n = 91; 41%)		No iron deficiency (n = 133; 59%)
Total (n = 224)	Baseline	Follow-up	Baseline	Follow-up
Handgrip strength (kg)	20.6 ± 9.4	21.9 ± 9.7*	20.3 ± 7.6	21.4 ± 7.5***
Isometric knee extension strength (kg)	13.8 ± 6.4	16.4 ± 7.4***	13.7 ± 6.2	15.4 ± 6.5***
Total Barthel Index (median, IQR)	45 (45–55)	75 (65–85)***	50 (45–62.5)	75 (63.7–81.2)***
Walking	5 (5–10)	10 (10–10)***	5 (5–10)	10 (10–10)***
Climbing stairs	0 (0-0)	5 (0–5)***	0 (0–5)†	5 (0–5)***

*p < 0.05; ***p < 0.001, difference within groups; ^†p < 0.05, difference between groups at baseline.