Table 2.

ANOVA contrast tests between non-shift workers, regular shift workers, and irregular shift workers.

Characteristics	Value of Contrast
	Regular shift work–non-shift work	Irregular shift work–non-shift work	Irregular shift work–regular shift work
Age	0.87	−0.17	−1.04
Perfectionism	−0.16	−0.25 **	−0.10
Openness	0.09	0.00	−0.08
Conscientiousness	0.25 *	0.20	−0.05
Extraversion	−0.23	−0.23	0.00
Agreeableness	−0.15	−0.10	0.04
Neuroticism	−0.36 *	−0.14	0.21 *

All significant values are presented in bold letters.

^*p < 0.05;

^**p < 0.01.