Long-term clinical outcome of tendon transfer and tendon graft for extensor tendon ruptures in rheumatoid hands

Table 3 Simple linear regression analysis showing variables affecting clinical outcomes and overall satisfaction

Variable	p-value	Beta	R²
Tendon transfer group (ref. time from rupture to surgery)
MP joint extension lag	0.269	0.352	0.082
Pulp-to palm distance	0.482	0.012	0.033
Tendon graft group (ref. time from rupture to surgery)
MP joint extension lag	0.001	1.244	0.437
Pulp-to palm distance	0.046	0.047	0.156
Overall satisfaction
MP joint extension lag	0.009	-0.029	0.155
Pulp-to palm distance	0.078	-0.337	0.074

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