Health and Safety Executive

Table BACKSIZE1 - 2004/05

Estimated prevalence and rates (%) of self-reported musculoskeletal disorders mainly affecting the back caused or made worse by current or most recent job, by workplace size, for people working in the last 12 months, 2004/05, 2003/04 and 2001/02

Number of people in workplace + Illness ascribed to their current/most recent job
Sample cases Estimated prevalence (thousands) Rate per 100 employed in the last 12 months
central 95% C.I. central 95% C.I.
lower upper lower upper
Self employed on own or with partners but no employees 50 27 20 35 0.99 0.71 1.3
   
1-24 employees 99 51 41 61 0.55 0.44 0.66
25+ employees 238 126 110 143 0.75 0.65 0.85
Missing 1 .. .. .. .. .. ..
   
1-49 employees 144 75 63 87 0.58 0.49 0.68
50+ employees 193 102 87 117 0.77 0.66 0.88
Missing 1 .. .. .. .. .. ..
All persons 388 205 184 226 0.70 0.63 0.78

Notes:

  • Definitions and data reliability
  • .. Not applicable
  • + Relates to the number of people at their workplace, which is not necessarily the same as the number of people working for the company.
  • See section 2.7 and Appendix 3.2 in the 'Self-reported work-related illness in 2004/05' (SWI04/05) report for more details on prevalence estimates and rates.
  • The estimates in this table take account of revisions made to the Great Britain population estimates following the 2001 Census.

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Updated 12.05.08