The Relationship of On-Call Work with Fatigue, Work-Home Interference, and Perceived Performance Difficulties

Table 1

Descriptive statistics of the main variables ().

	Range	Min	Max	Mean	SD	Percentiles
						25%	50%	75%
On-call duty exposure
Number of hours on-call per month		1.00	336.00	69.31	71.97	12.00	48.00	100.00
Number of active on-call hours per month		0.00	180.00	13.78	22.90	1.00	6.00	16.00
Average number of calls per duty		0.00	30.00	1.74	3.49	0.50	1.00	2.00
Experience of being on-call
On-call relaxation	1–10	1.00	10.00	6.94	2.46	5.00	7.00	9.00
On-call stress	1–10	1.00	10.00	3.95	2.57	1.50	3.00	6.00
On-call work demands	1–10	1.00	10.00	4.78	2.60	3.00	6.00	8.00
On-call restrictions	1–10	1.00	10.00	5.86	2.78	2.00	5.00	7.00
Satisfaction with compensation for on-call work	1–10	1.00	10.00	5.76	2.83	3.50	6.00	8.00
Strain-based WHI	1–4	1.00	3.67	1.74	0.61
Time-based WHI	1–4	1.00	3.67	1.75	0.59
Fatigue	1–5	1.00	5.00	2.15	0.82
Perceived on-call performance difficulties	1–10	1.00	8.00	2.43	1.66
Control variables
Age		23.00	69.00	45.01	11.07
Compensation^a	0-1	0.00	1.00	0.77	0.42
Job demands	1–4	1.25	4.00	2.57	0.58
Autonomy	1–3	1.00	3.00	2.46	0.59
Social support	1–4	1.00	4.00	3.15	0.64

0 = no compensation, 1 = compensation.