Study Author (Year) | N (Total number of participants) | Severity of depression | Mean Age (SD) | Intervention program | Control condition | Ethnicity |
---|---|---|---|---|---|---|
Andersson et al., 2005 [47] | 117 | Mild to moderate | Treatment group: m = 36.4(11.5) Control group: m = 36.3(9.9) | Internet-administered cognitive-behavioural self-help | Wait-list | Swiss |
Berger 2011 [8] | 76 | Mild Moderate Severe Dysthymic disorder | Total sample: m = 38.8(14.0) | Internet-based self-help program (Deprexis) | Wait-list | Swiss German |
Choi et al., 2012 [48] | 63 | Major depressive episode | Total sample: m = 39.0(11.07) | Internet-delivered CBT program (The Brighten Your Mood Program) | Wait-list | Resident of Australia, but self-identified as of Chinese origin |
Clarcke et al., 2005 [49] | 255 | Major depression | Treatment group: m = 44.5(10.5) Control group: m = 45.0(10.6) | CBT-based ODIN program | Treatment as usual | Not defined |
Farrer et al., 2011 [50] | 155 (relevant for us n = 80) | Mild and higher | Treatment group: m = 41.7(12.1) Control group: m = 43.7(12.3) | Web-based CBT (Web with tracking) | Not active control condition | Not defined |
Gilbody et al., 2015 [46] | 691 (relevant for us n = 452) | Moderate | Total sample: m = 39.86(12.65) | (1) Beating the Blues (2) MoodGYM | Usual GP care | UK |
Klein et al., 2016 [10] | 1013 | Mild to moderate | No means reported (participants were between 18 and 65Â years of age) | Internet-program (Deprexis) | Care as usual alone | Not defined |
Lambert et al. 2018 [60] | 62 | Moderate to severe | Treatment group: m = 39.3(12.0) Control group: m = 36.9(12.6) | Web-based course (eMotion) | Wait-list | UK |
Mantani et al., 2017 [57] | 164 (relevant for us n = 117) | Major | No means reported (participants were between 25 and 59 years of age) | Smartphone CBT program (Kokoro-App) | Switch alone arm (control arm) | Japanese |
Mohr et al., 2013 [51] | 102 (relevant for us n = 67) | Major depression | Treatment group: m = 47.6(12.4) Control group: m = 48.49(11.7) | MoodManager | Wait-list | African American; White; Other |
Newby et al., 2013 [52] | 109 | Major | Total sample: m = 44.3(12.2) | Worrying and Sadness internet-program | Wait-list | Not defined |
Newby et al., 2017 [58] | 106 | Moderate to severe | Total sample: m = 47.0(12.61) | Cartoon-style Web-based lessons teaching CBT skills | Treatment as usual | Not defined |
Proudfoot et al., 2004 [53] | 274 | Mild Moderate Severe | Treatment group: m = 43.6(14.3) Control group: m = 43.4(13.7) | Beating the Blues | Treatment as usual | White; Bangladeshi; Black African; Black Caribbean; Black other; Indian; Pakistani; Other |
Rosso et al., 2017 [5] | 77 | Major | Treatment group: m = 29.2(7.69) Control group: m = 28.8(6.74) | Internet-based sadness program | A monitored attention control group | Americans |
Selmi et al., 1991 [54] | 36 (relevant for us n = 24) | Major Mainor Intermittent | Total sample: m = 28.2(not reported) | Computer-administred treatment | Wait-list | All white |
Smith et al., 2017 [59] | 270 (relevant for us n = 129) | Major | Treatment group: m = 42.5(12.63) Control group: m = 37.59(13.29) | Internet-based sadness program | Wait-list | Not defined |
Stiles-Shields et al. 2019 [61] | 30 | Moderate to severe | No means reported (participants were at least 18Â years old) | (1) Boost Me (2) Thought Challenger | Wait-list | American |
Titov et al., 2010 [55] | 141 (relevant for us n = 94) | Major | Total sample: m = 43.0(12.86) | Internet-based sadness program | Delayed treatment group | Not defined |
Van Straten et al., 2008 [56] | 213 (relevant for us n = 81) | Major | No means reported (adults) | Web-based problem-solving program | Wait-list | Dutch |
Total: | 3954 (relevant for this meta-analysis n = 3226) | Mild to severe depression |  |  |  |  |