From the parmacoepi point of view, the best risk estimator is the relative risk (RR, event rate in exposed/event rate in non-exposed). This cannot be measured in case-controls studies, because the cases and the controls are independent, and the overall event rates are fixed by the cas/control ratio.
Bay of Campeche. Bay of Campeche, also called Gulf of Campeche, Spanish BahÃ­a de Campeche, bay of the Gulf of Mexico, southern Mexico. It is bounded by the YucatÃ¡n Peninsula to the east, by the Isthmus of Tehuantepec to the south, and by southern Veracruz to the west.
The Yucatan Peninsula separates the Caribbean Sea from the Gulf of Mexico. It is east of the Isthmus of Tehuantepec, which is a geographic partition separating Central America from the rest of North America. long line of ancient volcanoes (many still active) extends from the Pacific Ocean (north of Guadalajara) on eastward to the Gulf of Mexico, just to the south of Veracruz. Pico de Orizaba Volcano, the third highest mountain in North America, is located here. Peninsulas: