Analysis of influencing factors and the construction of predictive models for postpartum depression in older pregnant women

Table 2 Variable assignment description

Variable	Description of valuation
Education level	0 = college or higher; 1 = high school and below
Family relationships	0 = harmonious; 1 = disharmony
Pregnancy complications	0= no; 1= yes
Separation of the mother and infant after birth	0= no; 1= yes