Table 6. Multiple regression models for predictors of state anxiety and depression (n = 64).

Predicting variables	R2	R2 (change)	Standardized Coefficients
State Anxiety
The worst PI in the past 24 hrs	0.412	0.412	0.567c
Currently receiving anticancer treatment	0.472	0.060	0.268a
Length of cancer pain, weeks.	0.537	0.064	0.249a
ECOG PS	0.587	0.051	0.233a
BDI- II
ECOG PS	0.140	0.140	0.294b
Length of cancer pain, weeks.	0.238	0.099	0.278b
The average PI in the past 24 hrs	0.295	0.056	0.248b

^ap < 0.01; ^bp < 0.05; ^cp < 0.001.