How many people have cancer correctly detected and how many people get false alarms?
The numbers of cancers detected and false alarms are different for screening by neck exam than for screening by ultrasound. The charts that follow show the pros and cons of screening by neck exam and by ultrasound. The numbers on the charts are based on scientists’ best guesses at how many people are affected. The exact numbers will vary for different places and people. Screening 1,000 people by neck exam…