Summarizing Medicare payment and utilization for non-dementia psychiatric illness (NDMI), this study finds that, from 1992 to 2002, both expenditures and covered days declined.  Furthermore, this study suggests that inpatient treatment for NDPI is shifting to less expensive settings such as skilled nursing facilities.

Hoover, D. R., Akincigil, A., Prince, J. D., Kalay, E., Lucas, J. A., Walkup, J. T. et al. (2008). Medicare inpatient treatment for elderly non-dementia psychiatric illnesses 1992--2002; length of stay and expenditures by facility type. Administration Policy in Mental Health and Mental Health Services Research, 35(4): 231-40. http://www.ncbi.nlm.nih.gov/pubmed/18293080

Authors: Donald R. Hoover, Ayse Akincigil, Jonathan D. Prince, Ece Kalay, Judith A. Lucas, James T. Walkup, Stephen Crystal