Table 1.

Description of variables in determinants of health regression model

Variable Name	Definition	Comparator
Gender	Female	Male
Proxy	Proxy response	Non proxy response
Education
High School	High school educated	No high school
College/Technical College	College educated	No college
University	University educated	No university
Marital Status	Respondent's martial status is:
Widow	Widow	Not widowed
Divorced	Divorced	Not divorced
Single	Single	Not single
Purchasing power parity adjusted income quintile
Lowest income	$0–$17,499	Not $0–$17,499
Lower middle income	$17,500–$28,799	Not $17,500–$28,799
Higher middle income	$42,000–$62,353	Not $42,000–$62,353
Highest income	>$62,353	Not >$62,353
Missing income	Missing income data	No missing income data
Body Mass Index (BMI)
BMI0 (underweight)	BMI <18.5	BMI not <18.5
BMI1 (overweight)	BMI 25–29.9	BMI not 25–29.9
BMI2 (obese)	BMI > = 30	BMI not > = 30
Age Categories
Age	45–64	Not 45–64
Age1	65–74	Not 65–74
Age2	75+	Not 75+
Uninsured Americans	Americans with no health insurance	Americans with health insurance
Country	US	Canada