2013年职称英语考试《卫生类B级》考试真题_职称英语考试真题卫生类

2013年职称英语考试《卫生类B级》考试真题

For their new analysis，the European scientists divided people in the study into four groups，based on how many drinks they reported having in an average week．The lowestintake group included people who averaged up to 20 drinks a week．The highest group reported downing at least 56 servings of alcohol weekly for all average of eight or more per day．Cancer risks for the mouth and neck sites rose steadily with consumption even for people who reported drinking only with meals．For instance，compared with people in the lowestconsumption group，participants　who drank 21 to 34 alcohol servings a week at least doubled their cancer risk for all sites other than the larynx．If people in these consumption groups took some of those drinks outside meals，those in the higher consumption group at least quadrupled their risk for oral cavity and esophageal cancers．

People in the highestconsumption group who drank only with meals had lo times the risk of oral cancer，7 times the risk of pharyngeal cancer，and 16 times the risk of esophageal cancer compared with those who averaged 20 0r fewer drinks a week with meals．In contrast，laryngeal cancer risk in the highintake，with-meals-only group was only triple that in the low．intake consumers who drank with meals．

Alcohol can inflame tissues．Over time，that inflammation can trigger cancer．Dal Maso says.He suspects that food reduced cancer risk either by partially coating digestivetract tissues or by scrubbing alcohol off those tissues．He speculates that the reason laryngeal risks were dramatically lower for all study participants traces to the tissues lower exposure to alcohol．