Table 2.
Sensitivity analysis with an intra-trial correlation coefficient of 0.3.
| Null model | CVR | p | AIC | BIC |
|---|---|---|---|---|
| 1 | 0.925 | 50.11 | 59.98 |
| Moderator variable | QM | p | AIC | BIC |
|---|---|---|---|---|
| Task | 0.01 | 0.924 | 52.39 | 64.66 |
| Polarity | 0.43 | 0.510 | 52.06 | 64.33 |
| Target location | 5.10 | 0.404 | 56.47 | 78.13 |
| Return electrode | 1.48 | 0.688 | 54.79 | 71.81 |
| Timing | 1.39 | 0.239 | 51.02 | 63.30 |
| Current density | 0.09 | 0.768 | 52.70 | 64.98 |
| Duration | 4.29 | 0.038 | 48.50 | 60.78 |
| Blinding | 0.55 | 0.909 | 57.95 | 74.96 |
Number of studies = 53, number of effects = 88, CVR = coefficient of variation ratio (lnCVR was exponentiated), QM = Moderator test, AIC = Akikes information criterion, BIC = Bayesian information criterion, intra-trial correlation coefficient = 0.3.