Fatigue in ferry shipping employees: the role of work-family conflict and supervisor support

BMC Public Health

Table 4 Multivariable associations between work-family conflict, supervisor support and physical exertion

SOFI Physical exertion (n = 152)
	Model 1			Model 2			Model 3			Model 4
	β	R²	R² change	β	R²	R² change	β	R²	R² change	β	R²	R² change
Age	− 0.02			−0.02			0.02			0.03
Gender^a	− 0.06			−0.06			−0.05*			−0.09
Workplace^b	−0.14			−0.15			−0.09			−0.10
Professional group^c	−0.03			−0.06			−0.02*			−0.07
Typical time of work^d	0.19*			0.11			0.06			0.06
Job demands	0.27**			0.20*			0.11			0.11
Job demands		0.13**
Sleeping troubles				0.31***			0.23**			0.23**
Sleeping troubles					0.21***	0.08***
Work-family conflict							0.16			0.12
Support from supervisor							−0.18*			−0.18*
Support from supervisor								0.26***	0.05**
Conflict*super-visor support										−0.25**
Conflict*super-visor support											0.32***	0.06**

β – Standardized regression coefficient *Significant value: <0.05 ** Significant value: <0.01 ***Significant value: <0.001
^aFemale = 2. ^bTerminal = 1, Ferry ship = 2. ^cOfficers = 1, Non-officers = 2. ^dDay and Evening = 1, Day, Evening and Night = 2

ISSN: 1471-2458