Table 3.
Frequencies of the categories and subcategories of all outcome measurement instruments.
| Categoriesa and subcategories | Value (N=203), n (%b) | |||
| Clinical outcomesc |
|
|||
|
|
Psychiatric outcomes | 57 (28.1) | ||
|
|
Emotional functioning/well-being | 32 (15.8) | ||
|
|
Cognitive functioning | 21 (10.3) | ||
|
|
Social functioning | 4 (2.0) | ||
|
|
Adverse events | 4 (2.0) | ||
|
|
Delivery of care | 2 (1.0) | ||
|
|
Physiological data | 2 (1.0) | ||
|
|
Physical functioning | 1 (0.5) | ||
|
|
Gastrointestinal outcomes | 1 (0.5) | ||
| User experience outcomes |
|
|||
|
|
Subjective user experience outcomes |
|
||
|
|
|
User experience with the overall system | 34 (16.7) | |
|
|
|
User experience with the CAd | 15 (7.4) | |
|
|
|
User attitudes toward technology | 6 (3.0) | |
|
|
Objective user engagement measuremente |
|
||
|
|
|
Total duration of use | 10 (4.9) | |
|
|
|
Interaction with the CA | 8 (3.9) | |
|
|
|
Assessment of active use | 7 (3.4) | |
|
|
|
Total number of sessions | 5 (2.4) | |
|
|
|
Use of specific program features | 4 (2.0) | |
|
|
|
Average duration of the session | 4 (2.0) | |
|
|
|
Completion of a structured module | 2 (1.0) | |
|
|
|
Program use by day or week | 2 (1.0) | |
|
|
|
Adherence to usage instructions | 1 (0.5) | |
| Technical outcomes |
|
|||
|
|
Accuracy of the NLPf classifier | 2 (1.0) | ||
| Other outcomes |
|
|||
|
|
Experimental manipulation tests | 3 (1.5) | ||
aCategories are not mutually exclusive.
bThe percentages do not add to 100% as some outcomes are mapped to two or more subcategories.
cSubcategories are based on the core outcome set taxonomy of clinical outcomes.
dCA: conversational agent.
eSubcategories are based on a systematic review [10] of engagement with a mobile health intervention for depression.
fNLP: natural language processing.