Table 1: Search strategy for included studies.

Table 2: The results of the Newcastle-Ottawa Scale (NOS) for assessment of the quality of the observational studies. Table 3: Characteristics of the studies included in the meta-analysis. Table 4: The effect size of the relationship between GD and CVDs in included studies. Table 5: Adjusted variables in included studies in the meta-analysis of the relationship between GD and CVDs. Table 6: Effect size and computational scales (log of effect size and corresponding confidence interval, standard error of effect size, weight assigned to each study (for studies included in the analysis. Table 7: Studies identified in the literature search. (PDF)