Table 1

Demographic characteristics of nurses in Imam Khomeini Hospital Tehran University of Medical Sciences

Variables	Frequency	Per cent
Age (year)
˂31	55	20.7
31–40	108	40.5
41–50	89	3.5
˃50	14	5.3
Total	266	100
Mean±SD	38.60±7.94
Max and Min	23–59
Gender
Female	240	90.2
Male	26	9.8
Total	266	100
Marital status
Single	105	39.5
Married	155	58.3
Other	6	2.2
Total	266	100
Academic degree
Bachelor science	224	84.2
Master of science	42	15.8
Total	266	100