Table 4 Intervention effects calculated from meta-analysis and network meta-analysis, ordered by effect size (intervention v control)
Type of social norms intervention | Number of comparisons for meta-analysis (network meta-analysis) | SMD meta-analysis (95%CI) n = 100 | SMD network meta-analysis (95%CI) n = 102 | Probability of being the best intervention (%) |
|---|---|---|---|---|
Social comparison + social reward | 2 | 0.39(0.15 to 0.64) | 0.39 (0.15 to 0.64) | 59.2 |
Social comparison + prompts/cues | 5 | 0.33(0.22 to 0.24) | 0.33 (0.22 to 0.44) | 22.2 |
Credible sourcea | 7 | 0.30(0.13 to 0.47) | 0.30 (0.13 to 0.47) | 18.6 |
Social comparison + credible sourcea | 8(10) | 0.16(0.12 to 0.19) | 0.16(0.12 to 0.20) | 0.0 |
Social comparison + social support (unspecified) | 7 | 0.10(0.04 to 0.16) | 0.10 (0.04 to 0.16) | 0.0 |
Other multiple social norms BCTs | 4 | 0.07(0.03 to 0.12) | 0.07(0.03 to 0.12) | 0.0 |
Social comparison | 33(35) | 0.05(0.03 to 0.08) | 0.05(0.03 to 0.08) | 0.0 |
Social comparison + other BCTs | 23 | 0.04(0.00 to 0.08) | 0.04(0.00 to 0.08) | 0.0 |
Social reward | 2 | 0.03(− 0.08 to 0.13) | 0.03(− 0.08 to 0.13) | 0.0 |
Social comparison + instructions on how to perform the behaviour + prompts/cues | 5 | 0.01(− 0.10 to 0.11) | 0.01(− 0.10 to 0.11) | 0.0 |
Social comparison + info on health consequences | 4 | − 0.14(− 0.33 to 0.05) | − 0.14(− 0.33 to 0.05) | 0.0 |