Table 5

Standardised correlation coefficients (β) for control sociodemographic variables, personality and occupational stress variables as predictors of MBI—professional exhaustion, depersonalisation and personal accomplishment scores

Predictor	Model 1	Model 2	Model 3	Model 4	Model 5
Professional exhaustion
Control variables
Length of employment (years)	0.13*	0.09	0.10	0.12*	0.14**
Rank	−0.20***	−0.20***	−0.20***	−0.14**	−0.14*
Education	0.06	0.07	0.07	0.05	0.06
Origin	−0.02	−0.02	−0.04	−0.02	−0.03
Marital status	−0.05	−0.05	−0.03	−0.04	−0.01
Barracked	−0.05	−0.08	−0.07	−0.04	−0.03
Children	−0.09	−0.09	−0.09	−0.08	−0.08
Personality variables
BFQ energy/extraversion		−0.10	−0.09	−0.09	−0.09
BFQ friendliness/agreeableness		−0.08	−0.08	−0.09	−0.09
BFQ conscientiousness		−0.04	−0.04	−0.04	−0.04
BFQ emotional stability		−0.23***	−0.22***	−0.21***	−0.21***
BFQ openness		0.04	0.03	0.03	0.03
Occupational stress variables
DCS Demand			0.12*		0.12*
DCS Control			−0.07		−0.09
DCS Support			−0.09		−0.08
ERI Effort				0.21***	0.21***
ERI Reward				−0.16**	−0.16**
ERI overcommitment				0.27***	0.27***
Adjusted R²	0.05**	0.11***	0.13***	0.24***	0.26***
Depersonalisation
Control variables
Length of employment (years)	0.08	0.03	0.05	0.06	0.09
Rank	−0.08	−0.06	−0.06	−0.02	−0.01
Education	0.00	0.00	0.01	0.00	0.02
Origin	−0.02	−0.04	−0.06	−0.03	−0.05
Marital status	−0.09	−0.06	−0.04	−0.05	−0.03
Barracked	−0.05	−0.07	−0.06	−0.04	−0.03
Children	−0.18**	−0.16**	−0.16**	−0.15**	−0.14**
Personality variables
BFQ energy/extraversion		0.08	0.08	0.08	0.09
BFQ friendliness/agreeableness		−0.23***	−0.24***	−0.24***	−0.24***
BFQ conscientiousness		−0.02	−0.02	−0.02	−0.03
BFQ emotional stability		−0.24***	−0.24***	−0.23***	−0.23***
BFQ openness		−0.02	−0.02	−0.02	−0.02
Occupational stress variables
DCS Demand			0.03		0.03
DCS Control			−0.09		−0.12*
DCS Support			−0.17**		−0.17***
ERI Effort				0.16**	0.16**
ERI Reward				−0.23***	−0.24***
ERI overcommitment				0.14**	0.14**
Adjusted R²	0.03*	0.14***	0.17***	0.23***	0.26***
Personal accomplishment
Control variables
Length of employment (years)	0.06	0.09	0.05	0.08	0.03
Rank	0.01	−0.02	−0.05	−0.05	−0.08
Education	0.01	0.03	−0.01	0.04	0.00
Origin	0.09	0.08	0.09	0.08	0.09
Marital status	0.11	0.06	0.04	0.06	0.03
Barracked	−0.09	−0.06	−0.10	−0.07	−0.11*
Children	0.05	0.03	0.01	0.03	0.00
Personality variables
BFQ energy/extraversion		0.15**	0.14**	0.15**	0.14**
BFQ friendliness/agreeableness		0.26***	0.27***	0.26***	0.27***
BFQ conscientiousness		0.23***	0.24***	0.23***	0.24***
BFQ emotional stability		0.18***	0.17**	0.18**	0.16**
BFQ openness		0.17**	0.16**	0.17**	0.16**
Occupational stress variables
DCS Demand			−0.02		−0.02
DCS Control			0.19***		0.20***
DCS Support			0.03		0.02
ERI Effort				−0.08	−0.09
ERI Reward				0.06	0.07
ERI overcommitment				−0.09	−0.10
Adjusted R²	0.01	0.20***	0.23***	0.21***	0.24***

n=289.
*p<0.05.
**p<0.01.
***p<0.001.
Barracked, no=0, yes=1; BFQ, Big Five Questionnaire38 ,39; children, no=0, yes=1; DCS, Demand–Control–Support Questionnaire16 ,40; education, high school or higher=0, lower than high school=1; ERI, Effort–Reward–Imbalance Questionnaire17 ,40; marital status, single or divorced=0, married or cohabiting=1; MBI, Maslach Burnout Inventory50 ,51; origin, Northern Italy=0, Southern Italy=1; rank, agent (‘agent’ or ‘first class agent’)=0, other=1.