Table 2.

The linear mixed models for the association of the independent variables (WUR, state anxiety) and their interaction with the outcome pain intensity

	Coefficient (SE)	95% Confidence Interval		P-Value
LMM 1
Intercept	1.78	-4.97	8.53	0.60
WUR_R, baseline	2.41	-2.25	7.07	0.31
STAI, baseline	0.01	-0.14	0.17	0.86
Months	-0.19	-0.56	0.18	0.31
WUR_R x STAI	-0.04	-0.14	0.07	0.47
WUR_R x months	-0.07	-0.13	0.00	0.04
STAI x months	0.00	0.00	0.01	0.32
LMM 2
Intercept	4.11	-2.51	10.74	0.22
WUR_L, baseline	0.31	-3.82	4.44	0.88
STAI_baseline	-0.02	-0.17	0.13	0.79
Months	-0.21	-0.58	0.17	0.27
WUR_L x STAI	-0.01	-0.10	0.09	0.92
WUR_L x months	-0.03	-0.06	0.01	0.20
STAI x months	0.00	-0.01	0.01	0.41

WUR Wind up ratio, R Right side, L Left side, STAI_baseline Score State anxiety subscale