Table 4.
Effectiveness of social media-based interventions on weight percentage, waist circumference, fat and physical activity.
| Outcomes | No. of trials | Sample size | Statistical method & Analysis model | MD (95% CI) | Overall effect | I2 | Effect size g (95% CI) | |
|---|---|---|---|---|---|---|---|---|
| Z | P-value | |||||||
| Weight percentage (%) | 10 | 792 | IV & D-Laird & Random effects | −0.35 (−1.60, 0.91) | −0.54 | 0.59 | 63% | −0.08 (−0.34, 0.17) |
| Waist circumference (cm) | 8 | 1139 | IV & D-Laird & Random effects | −1.96 (−3.22, −0.70) | −3.06 | <0.001*** | 52.80% | −0.33 (−0.58, −0.09) |
| Body fat mass (kg) | 4 | 266 | IV & D-Laird & Random effects | −3.11 (−5.23, −1.00) | −2.88 | <0.001*** | 85.03% | −0.85 (−1.11, −0.59) |
| Body fat percentage (%) | 4 | 613 | IV & D-Laird & Random effects | −2.78 (−5.99, 0.42) | −1.70 | 0.09 | 84% | −0.42 (−0.92, 0.08) |
| Energy intake (kcal/day) | 8 | 680 | IV & D-Laird & Random effects | −9.95 (−99.45, 0.22) | −0.22 | 0.83 | 0% | <−0.001 (−0.15, −0.03) |
| Physical activity (steps/day) | 4 | 274 | IV & D-Laird & Random effects | 1510 (259, 2761) | 2.37 | 0.02* | 77.27% | 0.75 (−0.09, 1.58) |
| MVPA (minutes/day) | 5 | 240 | IV & D-Laird & Random effects | 1.45 (−6.27, 9.18) | 0.37 | 0.71 | 31.65% | 0.06 (−0.24, 0.36) |
CI Confidence Interval, D-Laird DerSimonian and Laird analysis model, g Hedges’s g (effect size); I 2 Heterogeneity, IV Inverse variance statistical method, kcal calorie, MD mean difference, min minutes, MVPA Moderate-to-vigorous physical activity, N sample size, random random effects model, ref reference list, Z z-statistics.
***P < 0.001; *P < 0.05.