Table 2.

Correlation analysis.

	n	Pearson’s r	p	Lower 95% CI	Upper 95% CI
PE-PSS	494	−0.637	<0.001	−0.684	−0.585
PE-TMD	494	−0.32	<0.001	−0.387	−0.255
PSS-TMD	494	0.51	<0.001	0.446	0.573

Note: PE = physical exercise, PSS = psychological stress, TMD = emotional state. r is Pearson product difference correlation coefficient.