Table 3. Results of the regression analyses.

Variables	Unstandardized coefficient B	Standard error	Standardized coefficient B	t	Significance
(A) Regression model for pain severity
R = 0.452	R2 = 0.204	Adjusted R2 = 0.179		F(1,32) = 8.212	0.007**
Constant	−1.961	2.183		−0.898	0.376
RTa	3.165	1.104	0.452	2.866	0.007**
(B) Regression model for the Q-DASH score
R = 0.356	R2 = 0.126	Adjusted R2 = 0.099		F(1,32) = 4.632	0.039*
Constant	72.658	23.445		3.099	0.004**
ACCb	−0.637	0.296	−0.356	−2.152	0.039*

Notes:

^aOne-second increase in reaction time at 1 month postoperatively, associated with a 3.165-point higher severe pain intensity.

^bOne percent point increase in accuracy at 1 month postoperatively, associated with a 0.637-point lower Q-DASH score.

^*p-value < 0.05.

^**p-value < 0.01.

RT, reaction time at 1 month postoperatively; ACC, accuracy at 1 month postoperatively; Q-DASH, quick disabilities of the arm, shoulder, and hand.