Mediating role of emotional labor in the association between emotional intelligence and fatigue among Chinese doctors: a cross-sectional study

Table 3 Associations of EI and emotional labor strategies with fatigue

Variables	Step 1			Step 2			Step 3
Variables	β	P	VIF	β	P	VIF	β	P	VIF
Age	0.071	0.113	1.574	0.052	0.222	1.577	0.066	0.108	1.594
Gender	−0.008	0.848	1.395	−0.016	0.690	1.396	−0.033	0.700	1.429
Marital status	0.098	0.015	1.294	0.088	0.022	1.296	0.087	0.019	1.297
Job rank	−0.105	0.014	1.442	−0.077	0.057	1.450	−0.077	0.050	1.452
Monthly income	−0.083	0.033	1.211	−0.074	0.047	1.212	−0.072	0.045	1.215
Weekly working time	0.164	< 0.001	1.362	0.137	0.001	1.370	0.121	0.002	1.396
Shift	0.024	0.754	1.357	−0.004	0.917	1.365	−0.019	0.617	1.370
Department
Dummy_1	0.129	0.003	1.507	0.095	0.022	1.518	0.094	0.020	1.526
Dummy_2	0.012	0.754	1.180	0.015	0.686	1.180	0.027	0.441	1.185
Dummy_3	0.020	0.627	1.285	0.032	0.395	1.287	0.032	0.397	1.294
Dummy_4	0.064	0.095	1.152	0.061	0.094	1.152	0.073	0.038	1.158
EI				−0.320	< 0.001	1.063	−0.270	< 0.001	1.136
SA							0.168	< 0.001	1.477
DA							0.034	0.381	1.427
NA							−0.105	0.004	1.240
F	5.954			13.220			14.033
Adjusted R²	0.069			0.166			0.209
ΔR²	–			0.097			0.046

Gender, men versus women; Marital status, married/cohabitated versus single/widowed/divorced/separated; Job rank, director versus staff; Shift, yes versus no. Department: Dummy_1, surgery versus internal medicine; Dummy_2, obstetrics and gynecology versus internal medicine; Dummy_3, pediatrics versus internal medicine; Dummy_4, others versus internal medicine. Abbreviations: EI emotional intelligence, VIF variance inflation factor, SA surface acting, DA deep acting, NA natural acting

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