Knee complaints and consequences on work status; a 10-year follow-up survey among floor layers and graphic designers.

Knee complaints & survival in the trade 1995–2005 Analysis among floor layers (N = 81) and graphic designers (N = 173) "at risk" of leaving the trade during follow-up, indicated that the probability of surviving in the trade was higher among floor layers without knee complaints (> 30 days during the past 12 months) in 1995 than among those with knee complaints, although the difference did not reach statistical significance (Figure 2 ).

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