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Table 4 Description of the assignment of independent variables

From: Exploring polypharmacy burden among elderly patients with chronic diseases in Chinese community: a cross-sectional study

Independent variable Assignment method
Age(years) 1=60~; 2=70~; 3=80~
Education 1= Primary school or less; 2= Middle school; 3= High school; 4= College or above
Income per month(RMB) 1=<2000; 2=2000~; 3=3000~; 4=4000~
Primary caregiver(Xg) (1) (2) (3) (4)
Spouse X1= 1 X2=0 X3=0 X4=0
Child X1= 0 X2=1 X3=0 X4=0
Nursing workers X1= 0 X2=0 X3=1 X4=0
No X1= 0 X2=0 X3=0 X4=1
Other owever, according to the recently achieved data fro X1= 0 X2=0 X3=0 X4=0
Types of medicines(kinds) 1=5~10; 2=11~15; 3=>15
Monthly self-paid medication(RMB) 1=<100; 2=100~; 3=300~; 4=500~; 5=800~
Frequency of medicines 1= Once per day; 2= Twice per day; 3= Three per day; 4= More than three times per day
  1. Primary caregivers need to set dummy variables