Table 5: Mean change between gum and control conditions in well-being and performance reported at the end of the workday.

Behind with work−.13 (.21)(29) = .54, = .54, Cohen’s = .11
Cognitive problems*−.35 (.15)(29) = −2.31, = .03, Cohen’s = .42
Job stress−.12 (.12)(29) = −.94, = .35, Cohen’s = .17
Fatigue.02 (.11)(29) = .21, = .84, Cohen’s = .04
Anxiety−.49 (.36)(29) = −1.38, = .18, Cohen’s = .25
Depression.25 (.35)(29) = .72, = .48, Cohen’s = .13
Inattention−.37 (.25)(29) = −1.48, = .15, Cohen’s = .27

Indicates significant effect of gum intervention, < .05. Negative score indicates lower score in gum condition. Standard errors of the mean are in parentheses.