The average salary is 24,000, but most people earn less. Most people have an above average number of feet. In his fourth lesson of a weekly series, author Michael Blastland cracks the myth of the average.ith incomes, to take another example, many people are aware that the average in the UK (also known as the mean) is about 24,000 a year (in fact, about 463 a week).
Unlike a colonoscopy, however, the 'range' of a sigmoidoscopy is not as good; whilst a colonoscopy can visualise the entire large bowel, a sigmoidoscopy can only visualise as far as the sigmoid colon (it is therefore primarily used to visualise the rectum and parts of the sigmoid colon).nlike a colonoscopy, however, the 'range' of a sigmoidoscopy is not as good; whilst a colonoscopy can visualise the entire large bowel, a sigmoidoscopy can only visualise as far as the sigmoid colon (it is therefore primarily used to visualise the rectum and parts of the sigmoid colon).
April 27, 2010 -- Colon cancer screening with just one flexible sigmoidoscopy cuts cancer risk and identifies those who need more invasive colonoscopy, an 11-year U.K. study finds. The study looked at more than 17,000 men and women ages 55-64 who said they were willing to take a colon cancer screening test.That test: flexible sigmoidoscopy, an exam that requires a similar night-before bowel prep as a colonoscopy but which is much simpler and less risky to perform.leven years later, people who got that single sigmoidoscopy had 33% fewer colon cancers and 43% fewer deaths from colon cancer. It's a one-off test ... and it probably will be done just once in a lifetime, Atkins said at a news briefing. It works well to prevent cancer in the [left] bowel.