Table 3.

Pairwise correlations between function and sarcopenia status.

Two test	Total		Study group		Control group
	Pearson's correlation coefficient	P-value	Pearson's correlation coefficient	P-value	Pearson's correlation coefficient	P-value
Initial SMI - Δ K-MBI	0.1986	0.150	0.279	0.159	0.104	0.604
Initial SMI- Δ BBS	0.0299	0.830	0.100	0.617	0.04	0.412
Initial SMI- Δ FAC	0.1974	0.153	0.235	0.238	0.165	0.835
Initial SMI- Δ MFT	0.1624	0.241	0.290	0.143	0.013	0.949
Initial SMI- Δ Grip strength	0.181	0.191	0.348	0.074	−0.023	0.908
Initial SMI- Δ FDS	0.0525	0.707	0.194	0.334	−0.178	0.374
Initial SMI- Δ PAS	0.0561	0.687	−0.031	0.879	0.141	0.483
Initial SMI - Δ DOSS	0.0124	0.902	0.228	0.264	−0.175	0.383
ΔSMI - Δ K-MBI	0.293*	0.032	0.265	0.182	0.296	0.134
Δ SMI- Δ BBS	0.296*	0.030	0.461*	0.016	0.049	0.963
Δ SMI- Δ FAC	0.305*	0.025	0.543*	0.003	0.010	0.807
Δ SMI- Δ MFT	0.267	0.051	0.276	0.163	0.053	0.791
Δ SMI- Δ Grip strength	0.278*	0.042	0.445*	0.020	−0.118	0.559
Δ SMI- Δ FDS	−0.160	0.250	−0.137	0.496	−0.166	0.409
Δ SMI- Δ PAS	−0.130	0.347	−0.204	0.307	0.022	0.915
ΔSMI - Δ DOSS	−0.150	0.282	−0.093	0.641	−0.019	0.925

Values are mean ± SD. K-MBI, Korean version of the modified Barthel index; BBS, Berg balance scale; FAC, functional ambulatory category; MFT, manual function test; FDS, functional dysphagia scale; PAS, penetration aspiration scale; DOSS, dysphagia outcome and severity scale; SMI, skeletal muscle index,

^*p < 0.05 by Pearson's correlation coefficient.