Table II.
Summary of Mean Effect Sizes by Moderator
| Moderator category | Number of studies | Mean weighted-effect size | 95% confidence interval | Q | p |
|---|---|---|---|---|---|
| Adherence measurement | 8.34 | .02 | |||
| Electronic | 13 | 0.80 | 0.41–1.19 | ||
| Pharmacy refill | 6 | 0.10 | −0.20–0.40 | ||
| Subjective | 8 | 0.24 | 0.08–0.40 | ||
| Intervention format | 6.78 | .03 | |||
| In-person only | 13 | 0.17 | −0.07–0.41 | ||
| Combined in-person plus technology | 9 | 0.43 | 0.14–0.73 | ||
| Technology only | 11 | 0.66 | 0.38–0.93 | ||
| Intervention target | 0.99 | .32 | |||
| Primary | 25 | 0.44 | 0.26–0.62 | ||
| Secondary | 8 | 0.25 | −0.06–0.57 | ||
| Caregiver recipient of intervention | 1.09 | .30 | |||
| Yes | 25 | 0.44 | 0.26–0.62 | ||
| No | 8 | 0.25 | −0.07–0.56 | ||
| Provider recipient of intervention | 0.32 | .57 | |||
| Yes | 5 | 0.27 | −0.18–0.72 | ||
| No | 28 | 0.41 | 0.24–0.58 | ||
| Participant mean age | 2.97 | .09 | |||
| Adolescent | 8 | 0.24 | 0.08–0.41 | ||
| Pre-adolescent | 21 | 0.50 | 0.26–0.74 | ||
| Intervention type | 3.45 | .06 | |||
| Education only | 1 | −0.35 | −1.14–0.44 | ||
| Other | 32 | 0.42 | 0.26–0.57 | ||
| Intervention location | 0.07 | .79 | |||
| Single location | 9 | 0.14 | −0.10–0.38 | ||
| Multiple locations | 2 | 0.07 | −0.37–0.51 | ||
| Intervention length | 1.49 | .22 | |||
| Single session | 4 | 0.16 | −0.25–0.57 | ||
| Multiple sessions | 29 | 0.43 | 0.26–0.60 |