Health and Safety Executive

Table BACKSIZE1 - 2001/02

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 57 27 20 35 1.1 0.83 1.4
   
1-24 155 71 60 83 0.78 0.66 0.90
25+ 283 132 117 148 0.79 0.70 0.89
Missing 1 .. .. .. .. .. ..
   
1-49 205 95 82 108 0.76 0.66 0.87
50+ 216 101 87 114 0.80 0.69 0.91
Missing/unknown 18 .. .. .. .. .. ..
All persons 496 232 211 253 0.81 0.74 0.89

Notes:

  • .. 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.
  • Missing values differ between the two parts of the table giving 2001/02 data because for 1-49 and 50+, individuals who gave the response 'Don't know but over 24 and under 500' have been coded as missing/unknown.
  • 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