Does anyone out there have any idea about the rates of lower lumbar pain and sciatica in the USA and whether they're going up or down? Are there any hard statistics about the different rates between the developed world (USA, Europe, Japan) and the undeveloped countries and primitive aboriginal societies? I know that Dr. Sarno believes that lower back pain as a phenomenon began to replace ulcers as a stress-related symptom some thirty years ago in the US. But what is the actual rate of increase in the number of cases being treated? And what about CTS (Carpal Tunnel Syndrome)? I know that between say 1985 and 1995 it increased dramatically. I think about 400%. It seems to have peaked lately, but does anyone have any hard data on that subject? Bomber and fighter pilots returning from WWII had high rates of lower back pain. And this I imagine this holds true for Vietnam and Iraq combat vets as well. Any statistics from the VA? I realize that information on lower lumbar pain is so subjective and anecdotal that it's extremely difficult to collect and analyze hard data on the syndrome, but someone must have some kind of statistics about increasing/decreasing trends and age brackets.