Table 1. Demographic variables, GJSQ scores, TEMPS-A scores, and AIS scores.

		Range	n	(%)	Mean ± SD
Gender	Male		45	(33.8)
	Female		88	(66.2)
Position classification	Non-managerial		90	(67.7)
	Managerial		43	(32.3)
Occupation	Clerical		95	(71.4)
	Professional		38	(28.6)
Type of employment	Regular		101	(75.9)
	Temporary		32	(24.1)
Age					41.6 ± 11.9
Service years					14.0 ± 12.3
GJSQ scores	Quantitative workload	(11–55)			34.7 ± 7.4
	Job control	(16–80)			42.0 ± 11.9
	Role conflict	(8–56)			25.8 ± 8.2
	Role ambiguity	(6–42)			18.7 ± 5.2
	Intragroup conflict	(8–40)			19.3 ± 5.5
	Supervisors support	(4–20)			15.5 ± 3.3
	Coworkers support	(4–20)			16.1± 3.1
Temperaments	Depressive	(0–21)			8.1 ± 3.5
	Cyclothymic	(0–21)			4.4 ± 3.9
	Hyperthymic	(0–21)			5.3 ± 4.2
	Irritable	(0-Male 21, Female 22)			2.9 ± 3.2
	Anxious	(0–26)			6.3 ± 5.5
AIS scores	Total	(0–24)			4.5 ± 3.6
	Insomnia Group		48	(36.1)	8.5 ± 2.4
	Non-Insomnia Group		85	(63.9)	2.3 ± 1.6

GJSQ: Generic Job Stress Questionnaire

TEMPS-A: Temperament Evaluation of Memphis, Pisa, Paris, and San Diego-Auto questionnaire

AIS: Athens Insomnia Scale