Age

Description

Age measures the age of the survey respondent. There are three main types of variables: those that provide pre-defined age groups choose from, those that ask for age in years, and those that ask for a year or date of birth. We use survey dates to estimate respondent ages if given the date of birth.

Contents

Harmonized Variables

age_1c | Age Cohorts

Generation of respondent.  Based on year of birth, including year of birth calculated based on age. 1 = Gen Z (since 1997), 2 = Millennial (1981 – 1996), 3 = Gen x (1965 – 1980), 4 = Boomer (1944 – 1964), 5 = Interwar & Earlier (before 1944)

age_1g | Age Groups

Combination of respondent age variables into three categories.  Note that not all original age values map perfectly to the target categories. 1 = under 30, 2 = 30 to 50, 3 = over 50

age_2y | Age in Years

Age of respondent in years.  Includes ages calculated based on year of birth.  14 = 14 and younger, YEARS, 98 = 98 and older

age_3b | Year of Birth

Respondent year of birth.  Includes year of birth calculated based on age.  YEAR

Age Categories

age_103a | Age Categories

Age of respondent: 3 categories. 1 = under 30, 2 = 30–50, 3 = over 50

age_103b | Age Categories

Age of respondent: 3 categories. 1 = under 35, 2 = 35–54, 3 = over 54

age_103c | Age Categories

Age of respondent: 3 categories. 1 = under 36, 2 = 36–50, 3 = over 50

age_103d | Age Categories

Age of respondent: 3 categories. 1 = under 30, 2 = 30–49, 3 = over 49

age_104a | Age Categories

Age of respondent: 4 categories. 1 = under 35, 2 = 35–49, 3 = 50–64, 4 = over 64

age_104b | Age Categories

Age of respondent: 4 categories. 1 = under 25, 2 = 25–39, 3 = 40–59, 4 = over 59

age_104c | Age Categories

Age of respondent: 4 categories. 1 = under 30, 2 = 30–50, 3 = 51–65, 4 = over 65

age_104d | Age Categories

Age of respondent: 4 categories. 1 = under 26, 2 = 26–35, 3 = 36–45, 4 = over 45

age_104e | Age Categories

Age of respondent: 4 categories. 1 = under 25, 2 = 25–34, 3 = 35–49, 4 = over 49

age_104f | Age Categories

Age of respondent: 4 categories. 1 = under 26, 2 = 26–45, 3 = 46–60, 4 = over 60

age_104h | Age Categories

Age of respondent: 4 categories. 1 = under 30, 2 = 30–39, 3 = 40–49, 4 = over 49

age_104i | Age Categories

Age of respondent: 4 categories. 1 = under 21, 2 = 21–29, 3 = 30–44, 4 = over 44

age_104j | Age Categories

Age of respondent: 4 categories. 1 = under 25, 2 = 25–39, 3 = 40–54, 4 = over 54

age_104k | Age Categories

Age of respondent: 4 categories. 1 = under 30, 2 = 30–49, 3 = 50–64, 4 = over 64

age_105a | Age Categories

Age of respondent: 5 categories. 1 = under 30, 2 = 30–44, 3 = 45–59, 4 = 60–74, 5 = over 74

age_105b | Age Categories

Age of respondent: 5 categories. 1 = under 25, 2 = 25–34, 3 = 35–44, 4 = 45–54, 5 = over 54

age_105d | Age Categories

Age of respondent: 5 categories. 1 = under 25, 2 = 25–34, 3 = 35–54, 4 = 55–64, 5 = over 64

age_105e | Age Categories

Age of respondent: 5 categories. 1 = under 25, 2 = 25–39, 3 = 40–54, 4 = 55–64, 5 = over 64

age_105f | Age Categories

Age of respondent: 5 categories. 1 = under 25, 2 = 25–34, 3 = 35–49, 4 = 50–64, 5 = over 64

age_106a | Age Categories

Age of respondent: 6 categories. 1 = under 20, 2 = 20–29, 3 = 30–39, 4 = 40–49, 5 = 50–59, 6 = over 59

age_106b | Age Categories

Age of respondent: 6 categories. 1 = under 18, 2 = 18–30, 3 = 31–40, 4 = 41–50, 5 = 51–60, 6 = over 60

age_106c | Age Categories

Age of respondent: 6 categories. 1 = under 25, 2 = 25–34, 3 = 35–44, 4 = 45–54, 5 = 55–64, 6 = over 64

age_106e | Age Categories

Age of respondent: 6 categories. 1 = under 26, 2 = 26–35, 3 = 36–45, 4 = 46–55, 5 = 56–65, 6 = over 65

age_106f | Age Categories

Age of respondent: 6 categories. 1 = under 35, 2 = 35–44, 3 = 45–54, 4 = 55–64, 5 = 65–74, 6 = over 74

age_106g | Age Categories

Age of respondent: 6 categories. 1 = under 30, 2 = 30–39, 3 = 40–49, 4 = 50–59, 5 = 60–69, 6 = over 69

age_107a | Age Categories

Age of respondent: 7 categories. 1 = under 20, 2 = 20–29, 3 = 30–39, 4 = 44–49, 5 = 50–59, 6 = 60–69, 7 = over 69

age_107b | Age Categories

Age of respondent: 7 categories. 1 = under 18, 2 = 18–24, 3 = 25–34, 4 = 35–44, 5 = 45–54, 6 = 55–64, 7 = over 64

age_107c | Age Categories

Age of respondent: 7 categories. 1 = under 25, 2 = 25–34, 3 = 35–44, 4 = 45–54, 5 = 55–64, 6 = 65–74, 7 = over 74

age_107d | Age Categories

Age of respondent: 7 categories. 1 = under 20, 2 = 20–29, 3 = 30–39, 4 = 40–49, 5 = 50–59, 6 = 60–69, 7 = over 69

age_107e | Age Categories

Age of respondents: 7 categories. 1 = under 31, 2 = 31–40, 3 = 41–50, 4 = 51–60, 5 = 61–70, 6 = 71–80, 7 = over 80

age_107f | Age Categories

Age of respondents: 7 categories. 1 = under 20, 2 = 20–24, 3 = 25–34, 4 = 35–44, 5 = 45–54, 6 = 55–64, 7 = over 64

age_107h | Age Categories

Age of respondents: 7 categories. 1 = 18–24, 2 = 25-34, 3 = 35-44, 4 = 45-54, 5 = 55-59, 6 = 60–64, 7 = over 64

age_108a | Age Categories

Age of respondent: 8 categories. 1 = under 20, 2 = 20–24, 3 = 25–29, 4 = 30–34, 5 = 35–44, 6 = 45–54, 7 = 55–64, 8 = over 64

age_108b | Age Categories

Age of respondent: 8 categories. 1 = under 20, 2 = 20–24, 3 = 25–29, 4 = 30–34, 5 = 35–39, 6 = 40–49, 7 = 50–59, 8 = over 59

age_108c | Age Categories

Age of respondent: 8 categories. 1 = under 23, 2 = 23–29, 3 = 30–39, 4 = 40–49, 5 = 50–59, 6 = 60–69, 7 = 70–79, 8 = over 79

age_109b |Age Categories

Age of respondent: 9 categories. 1 = under 26, 2 = 26–30, 3 = 31–35, 4 = 36–40, 5 = 41–45, 6 = 46–50, 7 = 51–55, 8 =56–60, 9 = over 60

age_109c | Age Categories

Age of respondent: 9 categories. 1 = under 25, 2 = 25–29, 3 = 30–34, 4 = 35–39, 5 = 40–44, 6 = 45–49, 7 = 50–54, 8 = 55–64, 9 = over 64

age_109d | Age Categories

Age of respondent: 9 categories. 1 = under 25, 2 = 25–29, 3 = 30–34, 4 = 35–39, 5 = 40–44, 6 = 45–49, 7 = 50–54, 8 = 55–59, 9 = over 59

age_110a | Age Categories

Age of respondent: 10 categories. 1 = under 21, 2 = 21–24, 3 = 25–29, 4 = 30–34, 5 = 35–39, 6 = 40–44, 7 = 45–49, 8 = 50–54, 9 = 55–64, 10 = over 64

age_110b | Age Categories

Age of respondent: 10 categories. 1 = under 21, 2 = 21–24, 3 = 25–29, 4 = 30–34, 5 = 35–39, 6 = 40–44, 7 = 45–49, 8 = 50–59, 9 = 60–69, 10 = over 69

age_111a | Age Categories

Age of respondent: 11 categories. 1 = under 20, 2 = 20–24, 3 = 25–29, 4 = 30–34, 5 = 35–39, 6 = 40–44, 7 = 45–49, 8 = 50–54, 9 = 55–59, 10 = 60–64, 11 = over 64

age_112a | Age Categories

Age of respondent: 12 categories. 1 = under 20, 2 = 20–24, 3 = 25–29, 4 = 30–34, 5 = 35–39, 6 = 40–44, 7 = 45–49, 8 = 50–54, 9 = 55–59, 10 = 60–70, 11 = 71–75, 12 = over 75

age_113a | Age Categories

Age of respondent: 13 categories. 12 categories.  1 = under 20, 2 = 20–24, 3 = 25–29, 4 = 30–34, 5 = 35–39, 6 = 40–44, 7 = 45–49, 8 = 50–54, 9 = 55–59, 10 = 60–64, 11 = 65–69, 12 = 70–74, 13 = over 74

Age in Years

age_299a | Age in Years

Age of respondent in one to three-digit years (some sources use decimal places for part of year): YEARS

Date of Birth

age_312m | Month of Birth

Month of birth for respondent using one and two-digit months. 1 = January, 2 = February, 3 = March, 4 = April, 5 = May, 6 = June, 7 = July, 8 = August, 9 = September, 10 = October, 11 = November, 12 = December

age_399y | Year of Birth

Year of birth for respondent using four-digit years. YEAR