Table 2

Results from the Egger's meta-regression test assessing the presence of small-study effects in the 17 trials comparing haloperidol and placebo for clinical improvement in schizophrenia

ParameterEstimateSEt Valuep Value95% CI
Slope (coefficient)−0.150.11−1.340.20−0.380.09
Bias (intercept)1.790.266.950.001.242.34
Test of H0: no small-study effects, p value=0.000