Table 3: Depression response over time as measured by PHQ-9 severity scores.

Response in DCM group
50% reduction in PHQ-9 score
PHQ-9 < 10
Either 50% reduction or PHQ-9 < 10Total
% (N)% (N)% (N)

3 months45.0% (121)55.8% (150)57.6% (155)269
6 months48.7% (96)56.9% (112)58.4% (115)197
12 months45.2% (38)54.8% (46)56.0% (47)84