Table 1.
Summary of coding metrics.
| Criteria and coding specifications | Number of studies, n (%) | |
| Type of training |
|
|
|
|
Specified | 9 (35) |
| Unspecified | 16 (62) | |
| Mode of contact |
|
|
|
|
7 (27) | |
| Phone call | 14 (54) | |
| In-app message | 5 (19) | |
| Text message | 5 (19) | |
| In-person | 6 (23) | |
| FaceTime or teleconference | 2 (8) | |
| Notifications | 1 (4) | |
| 1 (4) | ||
| On demand vs scheduled |
|
|
|
|
On demand | 12 (46) |
| Scheduled | 21 (81) | |
| Clinical vs nonclinical |
|
|
|
|
Clinical | 19 (73) |
| Nonclinical | 14 (54) | |
| Clinician vs nonclinician vs peer |
|
|
|
|
Clinician | 18 (69) |
| Nonclinician | 3 (12) | |
| Peer | 3 (12) | |
| Not specified | 4 (15) | |
| Time spent per interaction |
|
|
|
|
Specified | 11 (42) |
| Not specified | 15 (58) | |
| Evidence of dose effect |
|
|
|
|
No | 25 (96) |
| Yes | 1 (4) | |
| Social vs coach model |
|
|
|
|
Social | 24 (92) |
| Coach | 5 (19) | |
| Participants compensated |
|
|
|
|
Yes | 17 (65) |
| No | 9 (45) | |
| Participants received smartphone |
|
|
|
|
Yes | 4 (15) |
| Yes, if necessary | 7 (27) | |
| No | 16 (62) | |
| Remote study |
|
|
|
|
Yes | 12 (46) |
| No | 14 (54) | |