Cancer prevalence is defined as the number of living people who have ever been diagnosed with cancer. It includes people diagnosed with cancer in the past as well those who were recently diagnosed. Cancer prevalence is determined by how often a cancer occurs (incidence) and by how long people normally live after diagnosis (survival). This means prevalence counts are highest for the most common cancers with the longest survival.
Trinidad is located in the Caribbean, surrounded by the Caribbean Sea and the Atlantic Ocean. Trinidad is an island popular to tourists and is found northeast of Venezuela.
Trinidad was first explored by Spanish and Mexican traders, who liked its proximity to the Santa Fe Trail. It was founded after coal was discovered in the region, in 1862; this led to an influx of immigrants, eager to capitalize on this important natural resource. By the late 1860s, the town had about 1,200 residents.