Questions were asked about any back pain people had experienced during the preceding 12 months, help sought and advice given, restrictions on activity, and time taken off work in the preceeding 4 weeks due to back pain.
The months and years the questions were asked are:
Module 66
March, April and June 1993 (written report published "The prevalence of back pain in Great Britain"
, ISBN no. 0-11-691574-9)
December 1995
March, April and June 1996 (written report published "The prevalence of back pain in Great Britain in 1996"
, ISBN no. 0-11-620968-2)
Module 196
March, April and June 1998.
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