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. 2013 Nov 5;10(11):5863–5873. doi: 10.3390/ijerph10115863

Table 1.

Means and inter-correlations between morning and evening saliva cortisol secretion, job strain and sleep quality. (N = 76).

M Sd 1 2 3
1 Morning Cortisol 19.99 5.69
2 Evening Cortisol 2.02 1.01 0.29*
3 Job Strain 1.52 0.35 −0.07 −0.02
4 PSQI 5.60 3.03 −0.25* 0.05 0.16

* p < 0.05.