Table 1.

Sampling Strategy in 4 Waves of Interviews

Wave	Sampling Strategy	Themes Explored
HCO = health care organization.
Wave 1	12 Clinicians who were active users of care manager	Perceived value of care management Patterns of communication with care manager
	8 Care managers	Perceived value of care management Patterns of communication with clinicians Perception of value of mental health supervision
	6 Psychiatrists and 1 clinical psychologist	Perceived value of care management Perception of their role in supervising care managers
Wave 2	8 Clinicians who had used care manager but referred only a few patients  4 Clinicians reported by care managers to be less enthusiastic	Perceived value of care management Reservations about care management
	4 Clinicians who were active users of care management	How to integrate care management into overall pattern of care Value of suggestions received from mental health consultants
Wave 3	4 Clinicians who were active users of care management  5 Care managers and one repeat interview	Perceived barriers to care management Which patients benefited from care management
	6 Clinicians who worked with an in-practice care manager  5 Care managers who were collocated in 1 or more specific practice sites (HCO-B and HCO-D)	Pros/cons of in-practice vs central location of care manager Which patients benefited from care management Value of suggestions received from mental health consultants
Wave 4	4 Repeat interviews with care managers  4 Clinicians who worked with care managers in the dissemination phase of the project  6 Second interviews with clinicians identified by care managers as enthusiastic after working with care manager	Effect of care manager exposure on current enthusiasm