Asbestos and gastrointestinal cancer. A review of the literature

摘要: Exposure to asbestos is among several factors cited as possible causes of esophageal, gastric and colorectal cancer. More than 45 published studies have presented mortality data on asbestos-exposed workers. For each cohort, we listed the observed expected rates deaths from types gastrointestinal cancer based latest follow-up. Summary standardized ratios (SMRs) were then derived. Finally, calculated summary SMRs for total tract three occupational groups: factory workers, insulators/shipyard workers miners. Statistically significant elevations in found stomach all Esophageal remained significantly elevated when reanalyzed include only those cohorts with death certificate diagnoses cause deaths. However, not statistically after reanalysis. by group showed a elevation The was Based results reanalysis, are magnitude that could result diagnostic investigator error. We conclude more required before cancers documented asbestos-related diseases.