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Table BACKSIZE2 - 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, for small, medium and large workplaces, for people working in the last 12 months, 2004/05 and 2003/04

Workplace size + 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
Small (less than 50 employees) # 194 102 88 117 0.66 0.56 0.75
Medium (50-249 employees) 79 40 31 49 0.68 0.53 0.83
Large (250+ employees) 101 54 43 65 0.85 0.68 1.0
Missing/unknown 14 .. .. .. .. .. ..
All persons 388 205 184 226 0.70 0.63 0.78

Notes: