Table 1 Characteristics of 14 RCT’s included in the current systematic review
Study | Participants years/sex | Duration/FU (total) | Sample | Content | Control group | |
|---|---|---|---|---|---|---|
Therapy | Aftercare | |||||
Cussler et al. (2008) USA [21] | 40–55 m/f | 12 mo/− (12 mo) | n = 135 IG =66 CG = 69 | – | (following a 4 mo weight loss program) support through internet via email, platform, chatrooms, website | no support |
Donnelly et al. (2013) USA [26] | 18–65 m/f | 6 mo/ 12 mo (18 mo) | n = 295 IG = 201 CG = 194 | Weekly meetings (approx. 60 min) via conference call | – | same meetings face-to-face (clinic) |
Huber et al. (2015) USA [24] | 18–55 m/f | 3 mo/ 3 mo (6 mo) | n = 90 IG = 45 CG = 45 | „portion control plate “+ telecoaching every second we, approx. 20 min (= 7 phone calls in total) | – | print materials |
Hunter et al. (2008) USA [25] | Mean value 34 m/f | 6 mo/− (6 mo) | n = 451 IG = 227 CG = 224 | standard measure + computerized program (5x/wo online diary), weekly personalized feedback (online) + weekly topics on a website + 2 telephone conversations | – | only standard measure - > gym (minimum 3x/we), courses & preventive medical health check-up (face-to-face) |
Kim et al. (2015) Korea [31] | 20–60 m | 6 mo/− (6 mo) | n = 205 IG = 104 CG = 101 | 4 meetings face-to-face (consultation) + daily personalized text messages | – | 4 meetings face-to-face (consultation) |
Markham Risica et al. (2013) USA [22] | 18–70 f | 7 mo/ 5 mo (12 mo) | n = 363 IG = 286 CG = 82 | „SisterTalk “- > weekly interactive TV show + print materials | After Therapy ➔ 4 mo support via phone | waiting list print materials |
McConnon et al. (2007) UK [32] | 18–65 m/f | 12 mo/− (12 mo) | n = 221 IG = 111 CG = 110 | website, log in 1x/we (hints, tools & reminder via email, if no log-in was made) | – | print materials |
Morgan et al. (2013) Australia [33] | Mean value 47.5 (SD 11.0) m | 3 mo/ 3 mo (6 mo) | n = 159 IG1 = 54 IG2 = 53 CG = 52 | „SHED-IT“ IG1 = DVD, print materials, support book IG2 = + website, online diary, 7 individualized feedback emails | – | waiting list |
Pellegrini et al. (2011) USA [34] | 21–55 m/f | 6 mo/ - (6 mo) | n = 51 IG1 = 17 IG2 = 17 CG = 17 | IG1 = Weekly group meetings. (3x) + individual consultation (1x/mo) (face-to-face), diary + BodyMedia Fit System (digital bracelet + display - > data upload website) + weekly written feedback IG2 = (only TECH): no meetings, same materials via email (1x/we) + BodyMedia Fit System +1x/mo Phone consultations | – | Weekly group meetings. (3x) + individual consultation (1x/mo) (face-to-face), diary |
Rogers et al. (2016) USA [35] | 21–55 m/f | 6 mo/ - (6 mo) | n = 39 IG1 = 12 IG2 = 13 CG = 14 | IG1 = no meetings, materials via email, BodyMedia FIT System (digital bracelet + display - > data upload website) + support via phone (1x/mo approx. 10 min) IG2 = + LINK activity Monitor (direct feedback via smartphone app) | – | Weekly meetings (30–45 min), print materials, diary |
Routsalainen et al. (2015) Finland [36] | 18–64 m/f | 3 mo/ - (3 mo) | n = 46 IG1 = 15 IG2 = 16 CG = 15 | IG1 = Facebook group (materials + consultation) + Polar Active physical activity (monitoring) IG2 = only Facebook group | – | Opportunity for face-to-face feedback after post measurement |
Ströbl et al. (2013) Germany [37] | 18–65 m/f | 6 mo/ 6 mo (12 mo) | n = 467 IG = 228 CG = 239 | – | following a 3 we obesity treatment (clinic) ➔ personal consultation (face-to-face) + 6 phone consultations (5–10 min) | Only 3 we obesity therapy no aftercare |
Van Wier et al. (2009) Netherlands [38] | Mean value 43 (SD 8.6) m/f | 6 mo/ - (6 mo) | n = 1386 IG1 = 462 IG2 = 464 CG = 460 | IG1 = topics (phone consulting + phone consultation (every second week) IG2 = topics via interactive website + direct feedback via email (reminder via email or SMS, if no log-in was made) | – | phone consulting |
Winett et al. (2007) USA [39] | Mean Value 53 (SD 13.9) m/f | 3 mo/ 3 mo (6 mo) | n = 1071 IG1 = 322 IG2 = 330 CG = 298 | IG1 = internet platform with 12 topics IG2 = + support via church | – | waiting list |