Table 2.
Description of excluded studies.
| Study | Description | Reason for being excluded a |
| Kilbourne et al 2013 [ 37] | Cluster randomized adaptive implementation trial comparing a standard versus enhanced implementation intervention to improve uptake of an effective re-engagement program for people with serious mental illness | Allocation: cluster randomization |
| Participants: people with serious mental illness | ||
| Intervention: no social media | ||
| Kim & Stout 2010 [ 38] | The effects of interactivity on information processing and attitude change: implications for mental health stigma | Allocation: non-randomized |
| Participants: undergraduate students | ||
| Intervention: no social media | ||
| McFarlane et al 1995 [ 39] | Multiple-Family Groups and Psychoeducation in the Treatment of Schizophrenia | Allocation: randomized |
| Participants: people with schizophrenia, schizoaffective disorder, or schizophrenia form disorder (DSM-IH-R) | ||
| Intervention: no social media | ||
| Sicilia et al 2005 [ 40] | Effects of interactivity in a website—The moderating effect of need for cognition | Allocation: non-randomized |
| Participants: consumers | ||
| Intervention: no social media | ||
| Spinzy et al 2012 [ 41] | Does the Internet offer social opportunities for individuals with schizophrenia? A cross sectional pilot study | Allocation: non-randomized |
| Participants: people with psychotic disorders and affective disorder, anxiety disorders F20-F48 (ICD-10) | ||
| Intervention: no social media | ||
| Steinwachs et al 2011 [ 42] | A Web-based program to empower people with schizophrenia to discuss quality of care with mental health providers | Allocation: non-randomized |
| Participants: people with schizophrenia (no classification code specified, ICD-10 or DSM-V) | ||
| Intervention: no social media | ||
| van der Krieke et al 2012 [ 43] | Usability evaluation of a Web-based support system for people with schizophrenia diagnosis | Allocation: non-randomized |
| Participants: people with schizophrenia or a related psychotic disorder (eg, schizo-affective disorder, schizophreniform disorder, schizotypal disorder) (no classification code specified, ICD-10 or DSM-V) | ||
| Intervention: no social media | ||
| van der Krieke et al 2013 [ 44] | A Web-based tool to support shared decision making for people with a psychotic disorder: Randomized controlled trial and process evaluation | Allocation: randomized |
| Participants: people with non-affective psychosis (DSM-IV) | ||
| Intervention: no social media |
aICD-10=International Classification of Diseases, 10 thRevision; DSM-IV=Diagnostic and Statistical Manual of Mental Disorders, 4 thEdition.