Global prevalence of gastric intestinal metaplasia: a systematic review and meta-analysis.

Background: Gastric intestinal metaplasia (GIM) is a precancerous lesion that increases the risk of gastric cancer. Several preliminary studies have examined the prevalence of GIM. The present systematic review and meta-analysis were conducted aimed estimating the global prevalence of GIM.

Systematic Review and Meta-Analysis of Tourette Syndrome Prevalence; 1986 to 2022.

Background: Tourette syndrome (TS) is a disorder characterized by a history of multiple motor tics and the emergence of at least one vocal tic during a period of the disorder. The current investigation sought to clarify the prevalence statistics for TS using a systematic review and meta-analysis.

Methods: This systematic review and meta-analysis covered the period between 1986 and 2022.