Model for psychosocial impairment with standardized parameter estimates. The standardized parameter estimates for the demographic covariates are not depicted. They are as follows: Age and pain severity β=0.12, n.s.; pain sites and pain severity β=0.31, p<0.001; pain sites and ethnicity β=0.19, p<0.05; Education and pain severity β= -0.19, p<0.05; education and PTSD symptoms β= -0.13, n.s.; ethnicity and PTSD symptoms β=0.13, n.s.; ethnicity and months since MVA β= -0.26, p<0.001; months since MVA and PTSD symptoms β= -0.28, p<0.001. *p<0.05, **p<.001.