Table 2.

Variability in model components.

Authors	Delivery agent	Pharmacotherapy	Rx treatment algorithm	Stepped care plan	Consultative approach	Telephone follow-Up	Patient psychoeducation	Provider psychoeducation	Specialty mental health referral	Self-mgmt coaching	Colocated psychotherapy	Face-to-face follow-up	Maintenance plan
Cancer
Dwight et al. [22]	Cancer/depression clinical specialist (master’s-level social worker)	✓	✓	✓	✓	✓	✓	✓	✗	✓	✓	✓	–
Ell et al. [20,21]	Bilingual cancer depression clinical specialist (master’s-level social worker), supervised by psychiatrist	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✗	✓
Strong et al. [24]	Nurse without prior psychiatric experience, study psychiatrist	✓	✗	✗	✓	✓	✓	✓	–	✓	✓	✗	–
Kroenke et al. [23]	Nurse care manager; pain psychiatrist specialist	✓	✓	✓	–	✓	✓	–	–	–	✗	✗	–
HIV/AIDS
Adams et al. [26]	Nonmedically trained care managers (social workers) supervised by psychiatrist	✓	✓	✓	–	✓	–	–	✓	–	✗	✓	–
Coleman et al. [27]	Psychiatrist, consultation–liaison fellow, administrative assistant as case manager	✓	✓	✓	✓	–	–	✓	✓	–	–	–	–
Pyne et al. [29]	Depression care manager (registered nurse), clinical pharmacist, psychiatrist	✓	✓	✓	✓	✓	✓	✓	✓	✓	✗	✗	✗
Multiple sclerosis
Patten et al. [30]	Depression care manager (psychiatric nurse with multiple sclerosis training who completed IMPACT training) and psychiatrist	✓	✓	✓	✓	–	–	–	✓	–	✓	✓	✓

The number of components was not necessarily associated with better models or better patient outcomes. Rx, prescription; mgmt, management; ✓, included in model; ✗, not included in model; –, inclusion not reported; Consultative approach, consulting with a psychiatrist; Telephone/face-to-face follow-up, at least one telephone/face-to-face check-in after treatment initiation; Patient/provider psychoeducation, psychoeducation about depression and the target medical condition; Self-management coaching, coaching related to the target medical condition; Maintenance plan, plan developed with patients for use after treatment ends.