Table 6.

Assignment method of independent variables.

Independent variable	Assignment method
Geographical distribution	Eastern region = 0, 0; Central region = 1, 0; Western region = 0, 1
Hospital category	Comprehensive = 0, Specialized = 1
Gender	Male = 0, Female = 1
Age (years)	20–29 = 0,0; 30–39 = 1,0; ≥40 = 0,1
Nursing experience (years)	0–4 = 0,0,0; 5–9 = 1,0,0; 10–19 = 0,1,0; ≥20 = 0,0,1
Professional title	Nurse = 0,0; Primary nurse = 1,0; Nurse-in-charge and above = 0,1
Hospital area	General ward = 0, 0, 0; Critical care ward = 1, 0, 0; Outpatient or emergency department = 0, 1, 0; Operation room = 0, 0, 1
Employment	Permanent = 0, Contract = 1
Position	Nurse = 0, Head nurse or superintendent = 1
Work shift	Working in shifts = 0, Daytime = 1
Marital status	Single = 0,0; Married = 1,0; Others = 0,1
Only child	Yes = 0, No = 1
Parenting status	With child = 0, No child = 1
Monthly salary (Yuan)	<4000 = 0,0; 4000–6000 = 1,0; >6000 = 0,1