Table 3.

Results of the stepwise multiple regression analysis to predict recall of pain.

Predictors	B coefficient	95% CI of B	R square change	p value
Pain intensity at ED visit	0.31	0.21–0.40	0.11	<0.001
Pain intensity at 3 months	0.26	0.15–0.37	0.07	<0.001
Pain intensity at baseline	0.19	0.05–0.33	0.02	<0.001

Adjusted R² = 0.20, F = 26.9, and p < 0.001. Age, education level, cognitive status at 3 months, and number of medications were not retained in the final regression model; CI: confidence interval.