I'm currently writing a book about Yoga for Back Pain. 
I would like to know what the statistics are for people in North
America who suffer back pain.
1   My Question is what is the % of people who live with back pain in 
    North America?
a   How many working days are lost each year from back pain?
b   How many people have unsuccessful back operations?
c   How many people regret surgery?
d   How many people have successful back operations?
e   How many people are discontented with their GPs approach to bed rest and 
    pain killers?
f   How many people have had back paid relief from yoga?
g   How many people have completely eradicated their back problem with yoga?
This information would make for fascinating reading but has to be accurate at 
time of release and able to be cross-referenced if necessary.

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Request for Question Clarification by bobbie7-ga on 23 Oct 2006 09:58 PDT

A researcher will not post an answer unless all parts of a question are answered.
Perhaps it would be a good idea to post each question separately.

This sounds like the kind of research the author should be doing on their own.