Table 2.
Summary of overall effectiveness of IBI on veterans with PTSD.
| Author (year) | Intervention/Control | Estimate standard mean difference (95%CI) | I2 (%) | p | GRADE quality assessment |
|---|---|---|---|---|---|
| Engel et al., 2015 | 30/25 | −0.20[−0.73, 0.34] | – | – | – |
| Litz et al., 2007 | 8/10 | −0.89[−1.88, 0.09] | – | – | – |
| Morland et al., 2015 | 38/45 | −0.14[−0.57, 0.30] | – | – | – |
| Niemeyer et al., 2020 | 21/17 | −0.07[−0.71, 0.57] | – | – | – |
| Possemato et al., 2019 | 9/11 | −0.10[−0.99, 0.78] | – | – | – |
| Stevens et al., 2016 | 166/90 | −0.38[−0.64, −0.12] | – | – | – |
| Total | 272/198 | −0.29[−0.48, −0.11] | 0 | 0.002 | High |