 According to a meta-analysis of 14 countries in North America, Europe, the Middle East, Central and South America, sub-Saharan Africa and the Pacific also showed that carrying a weapon at school is associated with bullying victimization.Comparison of Global School-based Student Health Survey (GSHS) data on school violence and bullying for countries that are particularly affected by gang violence suggests that the links may be limited.In El Salvador and Guatemala, for example, where gang violence is a serious problem, GSHS data show that the prevalence of bullying, physical fights and physical attacks reported by school students is relatively low, and is similar to prevalence in other countries in Central America where gang violence is less prevalent.