Table 4.

Coefficients of multiple linear regression of deep acting, hair cortisol content, and their interaction against Maslach job burnout (n = 229).

	Independent variable	Emotional exhaustion				Professional inefficacy				Depersonalization
	Predictive variable	ΔR2	β	B	SE	ΔR2	β	B	SE	ΔR2	β	B	SE
Step 1	Demographic variablesa
Step 2	Deep acting	0.028∗∗	-0.172∗∗	-0.393	0.147	0.130∗∗	-0.368∗∗	-0.708	0.122	0.061∗∗	-0.251∗∗	-0.524	0.134
Step 3	HCCb	0.000	0.002	0.010	0.272	0.000	-0.002	-0.008	0.227	0.003	-0.060	-0.231	0.247
Step 4	DA×HCCc	0.017∗	-0.133∗	-0.845	0.400	0.001	0.026	0.137	0.337	0.030∗∗	-0.174∗∗	-1.010	0.362

Notes: ^∗p < 0.05, ^∗∗p < 0.01, and ^∗∗∗p < 0.001. ^aDemographic variables showed the same results as Table 2. ^bHCC referred to hair cortisol content. ^cDA×HCC referred to the interaction between deep acting and hair cortisol contents.