Table 6.

predicting change score in SSS by variables of age, duration of symptoms, and electrophysiological severity

Predictors	B	Standard error	Sig.	Standard coefficient Beta	CI 95%
Constant	2.844	0.084	< 0.001	–	2.678–3.011
Age	0.002	0.001	0.134	0.077	−0.001-0.004
Duration of symptoms	0.056	0. 20	*0.007	0.137	0.015–0.096
Electrophysiological severity	0.231	0.016	* < 0.001	0.767	0.199–0.263
Thenar muscle atrophy	−0.003	0.028	0.908	−0.006	−0.58-0.052
Model summary
Model	R	R2	Adjusted R2
Age, duration of symtoms, electrophysiological severity, Thenar muscle atrophy	0.796	0.634	0.624