Table 2.

Pearson’s r correlations between study variables

	Extroversion	Emotional stability	Perceived stress	Educationa	Depressionb
MD	−.43*	−.40*	.51*	−.33*	.23*
Extroversion		.20	−.29*	.23	−.16*
Emotional stability			−.50*	.14*	−.16*

*P < .001

^aEducation = 1 (elementary/high school), 2 = bachelor degree, 3 = graduate degree

^bDepression = 0 (yes), 1 (no)