Time for some pretty easy math; if 93,000,000 scans cause 103,000 cancer diagnoses, what percentage of scans cause cancer?
Its 0.11%. Each scan has a 0.11% chance of causing cancer. Thats slighty more than a 1 in 1000 chance for each scan.
Now, 93000000 and 103000 look like large scary numbers but when you’re comparing populations every number is likely to be large and scary. The absolute magnitude is meaningless; the important information lies in their proportion.
Time for some pretty easy math; if 93,000,000 scans cause 103,000 cancer diagnoses, what percentage of scans cause cancer?
Its 0.11%. Each scan has a 0.11% chance of causing cancer. Thats slighty more than a 1 in 1000 chance for each scan.
Now, 93000000 and 103000 look like large scary numbers but when you’re comparing populations every number is likely to be large and scary. The absolute magnitude is meaningless; the important information lies in their proportion.