Understanding subsequent costs of treating patients who fail initial treatm
ent for depression is critical in cost-effectiveness analysis. This prospec
tive observational study calculated such costs in a community mental health
center. Total mean annual direct per-patient costs were $6,818 to $8,661.
This total was markedly higher than those reported in studies that were bas
ed partially on the assumptions of expert panels rather than observed utili
zation rates. These results suggest that in settings similar to the present
study, antidepressant treatments with higher failure rates may carry a mar
ked hidden cost disadvantage.