Table 1.
Summary of key characteristics of included publications.
| Classification | Papers (N=356), n (%)a | |
| Country of corresponding author | ||
|
|
United States | 160 (44.9) |
|
|
Australia | 28 (7.9) |
|
|
India | 27 (7.6) |
|
|
United Kingdom | 20 (5.6) |
|
|
Canada | 17 (4.8) |
|
|
Other | 104 (9.2) |
| Country income classification of corresponding author | ||
|
|
High income (>US $12,696) | 297 (83.4) |
|
|
Middle income (US $1046-$12,695) | 59 (16.6) |
|
|
Low income (<US $1045) | 0 (0) |
| Publication type and study methods | ||
|
|
Nonempirical | 225 (63.2) |
|
|
Empirical | 99 (27.8) |
|
|
Review | 20 (5.6) |
|
|
Protocol | 12 (3.4) |
| Empirical study methods | ||
|
|
Quantitative methods | 68 (68.7) |
|
|
Mixed methods | 21 (21.2) |
|
|
Qualitative methods | 10 (10.1) |
| Mental disorder of focus | ||
|
|
Anxiety (including posttraumatic stress disorder) | 71 (19.9) |
|
|
Depression | 48 (13.5) |
|
|
Substance abuse disorders (including addiction) | 17 (4.8) |
|
|
Psychotic disorders (including schizophrenia) | 16 (4.5) |
|
|
Suicide | 13 (3.7) |
|
|
Eating disorders | 11 (3.1) |
| Specific population of focus | ||
|
|
Children and/or adolescents | 90 (25.3) |
|
|
Older adults and/or the elderly | 20 (5.6) |
|
|
Veterans | 17 (4.8) |
|
|
Health professionals | 15 (4.2) |
| Modality of focus | ||
|
|
Telephone or videoconferencing | 142 (39.9) |
|
|
Smartphone apps | 43 (12.1) |
|
|
Support groups | 6 (1.2) |
aColumns may not equal 356 due to missing values and overlap in some categories.