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. Author manuscript; available in PMC: 2018 Mar 20.
Published in final edited form as: Geriatr Nurs. 2015 Sep 16;37(1):13–18. doi: 10.1016/j.gerinurse.2015.08.010

Fig. 2.

Fig. 2

Association between poor sleep quality and working condition index.

Note. Prevalence of poor sleep quality reduced with increase of the number of beneficial work features (linear trend p<0.01)