Table 2.
Intervention conditions and effectiveness of included studies (N=34).
| Author (year) | Modality type | On-site session | Time of follow-up (from baseline) | Completion rate after intervention (%) |
| Anand et al [59], (2020) | Website | No | 6 mo and 12 mo | 88.2 |
| Bauerm-eister et al [70], (2019) | Mobile app | No | 1 mo, 2 mo, and 3 mo | 79.4 |
| Brody et al [60], (2022) | SMS text messaging | No | 6 mo and 12 mo | 34.7 |
| Bull et al [78], (2009) | Website | No | 2 mo (internet sample) or 3 mo (clinic sample) | Not mentioned |
| Bull et al [77], (2012) | Social media | No | After intervention (8 wk from baseline), 6 mo | 69 |
| Christensen et al [69], (2013) | Video game | No | After intervention and 3-mo after intervention | 98.5 |
| Cordova et al [79], (2020) | Mobile app | Yes | After intervention, 30 d | 98 |
| Ezegbe et al [52], (2018) | Social media | No | 8 wk and follow-up after intervention | 100 |
| Fiellin et al [80], (2017) | Video game | Yes | 6 wk, 3 mo, 6 mo, and 12 mo | 83 |
| Hightow-Weidman et al [68], (2012) | Website | No | 1 and 3 mo | 90 |
| Hightow-Weidman et al [67], (2019) | Website | No | 3, 6, and 12 mo | 85.2 |
| Jones et al [81], (2013) | Website | No | 3 and 6 mo | 80.7 |
| Klein and Card [82], (2011) | Multimedia software | Yes | 3 mo | 91 |
| Lau et al [56], (2016) | Website | No | After intervention, 1 mo, and 3 mo | 77.4 |
| Levy et al [61], (2021) | Website | No | 1 mo | 69.1 |
| Logie et al [55], (2023) | SMS | No | 8 mo, 12 mo, and 16 mo | 71.1 |
| Marsch et al [75], (2011) | Multimedia software | Yes | After intervention, 1-mo after test, and 3-mo after test | 93 |
| Marsch et al [76], (2015) | Multimedia software | Yes | After intervention (within 2 wk) | 100 |
| McCrimmon et al [83], (2024) | Website | Yes | After intervention | 100 |
| Mustanski et al [66], (2013) | Website | No | After intervention, 6, and 12 wk | 88.2 |
| Mustanski et al [65], (2018) | Website | No | 3, 6, and 12 mo | 81.2 |
| Nelson et al [64], (2022) | Website | No | 3 wk and 15 wk | 89 |
| Newcomb et al [71], (2023) | Videoconference | No | 3 mo, 6 mo, 9 mo, and 12 mo | 58.3 |
| Peskin et al [73], (2015) | Video game | Yes | 1 y | 89.2 |
| Santa Maria et al [74], (2021) | Mobile app | No | 6 wk | Not mentioned |
| Schnall et al [63], (2022) | Mobile app | No | 3 mo, 6, and 9 mo | 81.7 |
| Swendeman et al [84], (2024) | SMS, social media, and videoconference | No | 4 mo, 8 mo, 12 mo, 16 mo, 20 mo, and 24 mo | 42.2 |
| Widman et al [72], (2018) | Website | No | After intervention, 4 mo | 99.5 |
| Widman et al [85], (2020) | Website | No | After intervention | 91.6 |
| Wray et al [62], (2019) | Mobile app | Yes | 1, 2, and 3 mo | 97.5 |
| Ybarra et al [53], (2013) | Website | Yes | 3 and 6 mo | 94.8 |
| Ybarra et al [54], (2015) | Website | Yes | 3 and 6 mo | 94.8 |
| Yi et al [57], (2024) | Website | No | 4 mo and 8 mo | 95 |
| Zhang et al [58], (2024) | Videos | No | 6 mo and 12 mo | 89.1 |