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.
Coordinates: 45Â°30â²N 04Â°20â²Wï»¿ / ï»¿45.500Â°N 4.333Â°Wï»¿ / 45.500; -4.333 The Bay of Biscay is a gulf of the northeast Atlantic Ocean located south of the Celtic Sea. It lies along the western coast of France from Point Penmarc'h to the Spanish border, and the northern coast of Spain west to Cape Ortegal. The south area of the Bay of Biscay washes the northern coast of Spain and is known as the Cantabrian Sea. The average depth is 1,744 metres and the greatest depth is 4,735 metres.