Table 1

The main meta-analytical methods for evaluating prognostic features of epilepsy surgery

Type of meta-analysisNumber of meta-analysesTotal number of included individual studies (upper bound)Total number of patient participants (upper bound)
Univariate (tests of proportions, ANOVA, t-test or crude effect sizes)92156351
Proportional Hazards models (Cox regression)119187
Fixed or random (mixed) effects models17112255 502
Meta-regressions (including logistic regression)637216 006
(Bayesian) network analyses (NMA)43256471
Hierarchical/multi-level000
Other: partial least squares (projection to latent space)120186
  • ANOVA, Analysis of Variance; NMA, Network Meta-Analysis.