The prospective study measured cholesterol levels before and after changes to shift work patterns were agreed by consensus. Some reductions in risk level were observed. the effect of these reductions could not be projected into reductions of actual disease but lend support to the idea that shift work changes risk.
Evidence from:
H Boggild et al. Scandinavian Journal of Work, Environment and Health. Apr (2001) Vol.27 #2 p 87.
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