TABLE 5.

The results of hierarchical multiple regression analysis (n = 165).

	Model 1				Model 2
	β	SE	t	p	β		t	p
Constant	1.412**	0.225	6.287	0.000	3.478**	0.408	8.519	0.000
Rank	0.547**	0.086	6.329	0.000	0.077	0.061	1.255	0.211
Location	0.116**	0.025	4.602	0.000	0.029	0.017	1.742	0.083
Age	0.013	0.099	0.130	0.897	0.046	0.061	0.747	0.456
Marriage	–0.232	0.154	–1.508	0.133	–0.098	0.097	–1.017	0.311
Duration of last vacation					–0.571**	0.080	–7.160	0.000
Duration of this service					0.267**	0.077	3.474	0.001
R 2	0.418				0.779
Adjusted R 2	0.403				0.771
F	F (4,160) = 28.733, p = 0.000				F(6,158) = 92.821, p = 0.000
△R2	0.418				0.361
△F	F(4,160) = 28.733, p = 0.000				F(2,158) = 129.029, p = 0.000

Dependent variable: overall fatigue.

* p<0.05, **p<0.01.