GC presents higher incidences among populations with low socioeconomic levels, and among those who live in high risk zones where several unfavorable factors converge. These factors include poor environmental quality, especially low quality water with high levels of nitrites and nitrates 5.
El CG presenta mayor incidencia en las poblaciones de niveles socioecómicos bajos que habitan en zonas de alto riesgo, en donde confluyen varios factores desfavorables, como poca calidad ambiental, mala calidad del agua, con altos niveles de nitritos y nitratos 5.