Table 1 Characteristics of included studies
Study | Mean age (SD) | Mean BMI (SD) | % of females | Intervention(s) | Comparator(s) | Intensity of contact | Feedback provider | Intervention length | Follow-up |
|---|---|---|---|---|---|---|---|---|---|
Blomfield et al. 2013 [38] Australia | 47.5 (11.0) | 32.7 (3.5) | 0 | SHED-IT online (n = 53) | SHED-IT Program materials (n = 54) Wait-list (n = 52) | IC (SHED-IT WBE) SH (SHED-IT Program materials) | Human (SHED-IT) | 12 weeks | 24 weeks |
Chambliss et al. 2011 [39] USA | 45.0 (10.3) | 30.5 | 83 | WBB (n = 45) WBE (n = 45) | Wait-list (n = 30) | GSH (WBB) MC (WBE) | Human (Both conditions) | 12 Weeks | – |
Collins et al. 2012 [41] Australia | 42.0 (10.2) | 32.3 (4.0) | 58 | WBB (n = 99) WBE (n = 106) | Wait-list (n = 104) | SH (WBB) MC (WBE) | Machine (WBE) | 12 weeks | – |
Collins et al. 2013 [40] Australia | 41.9 (10.2) | 32.2 (3.9) | 58.5 | WBB (n = 143) WBE (n = 158) | Comparison between intervention groups | SH (WBB) MC (WBE) | Machine (WBE) | 24 weeks | – |
Gabriele et al. 2010 [42] USA | 45.4 (8.7) | 32.1 (4.3) | 83.7 | Minimal E-Coach Support (n = 34) Directive E-Coach Support (n = 35) Non-Directive E-Coach Support (n = 35) | Comparison between intervention groups | GSH (Minimal E-Coach Support) MC (Non-Directive E-Coach Support) IC (Directive E-Coach Support) | Human (All conditions) | 12 weeks | – |
Gold et al. 2007 USA [43] | 47.7 (10.3) | 32.4 (4.1) | 81.5 | eDiets (n = 62) VTrim (n = 62) | Comparison between intervention groups | MC (eDiets) IC (VTrim) | Machine (eDiets) Human (VTrim) | 24 weeks | 48 weeks |
Hunter et al. 2008 [44] USA | 34.0 (7.3) | 29.4 (3.0) | 50.2 | BIT + LEARN program (n = 224) | Usual Care (n = 222) | IC (BIT + LEARN) SH (Usual Care) | Human (BIT + L.EARN) | 24 weeks | – |
Morgan et al. 2009 [47] Australia | 35.9 (11.1) | 30.6 (2.8) | 0 | SHED-IT (n = 34) | Information (n = 31) | IC (SHED-IT) SH (Information) | Human (SHED-IT) | 12 weeks | 24 weeks |
Morgan et al. 2010 [48] Australia | 35.9 (11.1) | 30.6 (2.8) | 0 | SHED-IT (n = 34) | Information (n = 31) | IC (SHED-IT) SH (Information) | Human (SHED-IT) | 12 weeks | 48 weeks |
Morgan et al. 2011 [46] Australia | 44.4 (8.6) | 30.5 (3.6) | 0 | POWER (n = 65) | Wait-list (n = 45) | IC (POWER) | Human (POWER) | 14 weeks | – |
Morgan et al. 2013 [45] Australia | 47.5 (11.0) | 32.7 (3.5) | 0 | SHED-IT (n = 53) | SHED-IT Program materials (n = 54) Wait-list (n = 52) | IC (SHED-IT) SH (SHED-IT Program materials) | Human (SHED-IT) | 12 weeks | 24 weeks |
O’Brien et al. 2014 [49] Australia | 41.6 (10.2) | 32.3 (3.9) | 58.5 | WBB (n = 94) WBE (n = 98) | Wait-list (n = 97) | SH (WBB) MC (WBE) | Machine (WBE) | 12 weeks | – |
Tate et al. 2001 [50] USA | 40.9 (10.6) | 29.0 (3.0) | 89 | IE (n = 45) IBT (n = 46) | Comparison between intervention groups | MC (IE) IC (IBT) | Human (Both conditions) | 24 weeks | – |
Thomas et al. 2017 [51] USA | 55.0 (11.5) | 33.9 (3.7) | 77.5 | WWO (n = 94) WWO + AL (n = 91) | Newsletters (n = 86) | SH (WWO) GSH (WWO + AL) SH (Newsletters) | Machine (WWO + AL) | 48 weeks | – |
Womble et al. 2004 [52] USA | 43.7 (10.2) | 33.5 (3.1) | 100 | eDiets (n = 23) | LEARN program (n = 24) | GSH (eDiets) SH (LEARN) | Human (eDiets) | 48 weeks | – |