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This is a 3-digit numeric variable.

Description

AGE reports the age of respondents.

When age is recorded in categories, a mid-point of each age group is assigned, for example, 17 for age group 15-19. When surveys only included the year of birth of respondents, AGE was computed by subtracting the year of birth from the year of the survey. To protect the anonymity of the oldest respondents, age is topcoded. Users should note differences in topcodes across countries and years.

In all years, a code of -8 represents missing data.

Comparability — Index

GENERAL
Belgium
Bulgaria
Canada
Czech Republic
Finland
France
Germany
Netherlands
Peru
Serbia
United States

Comparability

AGE is constructed differently across samples.

Topcodes apply as follows:

80+ coded as 80

Canada: 2005, 2010
France: 2009
Hungary: 1999, 2009
Italy: 2002
Spain: 2002, 2009
United Kingdom: 1974, 1983, 1984, 1987, 1995, 2000, 2001, 2005
United States: 1965, 1975, 1985, 1993, 1995, 1998, 2003-2022

85+ coded as 85

Bulgaria: 2001

90+ coded as 90

Austria: 1992, 2008
France: 1985, 1998
Israel: 1999
Italy: 2008
Netherlands: 1975, 1980, 1985, 1990, 1995, 2000, 2005
South Korea: 1999, 2004, 2009
Spain: 2002
United Kingdom: 2014

Comparability — Belgium [top]

For 1966 the original variable captures the respondent’s age in 9 categories.
Code: Age range
18 : 18-20
22 : 20-24
27: 25-29
35: 30-39
45: 40-49
52: 50-54
57: 55-59
62: 60-64
72: 65+

Comparability — Bulgaria [top]

For 1965 the original variable captures the respondent’s age in 9 categories.
Code: Age range
18 : 18-20
22 : 20-24
27: 25-29
35: 30-39
45: 40-49
52: 50-54
57: 55-59
62: 60-64
72: 65+

Comparability — Canada [top]

In 2005 and 2010, AGE is not an exact measure of a diarist's age. The original variable data indicates the respondent's age in 15 categories, and is recoded in the following way:

AGEGR5 - AGE (recoded)
15 to 17 - 16
18 to 19 - 18
20 to 24 - 22
25 to 29 - 27
30 to 34 - 32
35 to 39 - 37
40 to 44 - 42
45 to 49 - 47
50 to 54 - 52
55 to 59 - 57
60 to 64 - 62
65 to 69 - 67
70 to 74 - 72
75 to 79 - 77
80 years and over - 80

In 2015, the original variable age captures the respondent's age in 7 interval categories and is recoded at the middle point.

Comparability — Czech Republic [top]

For 1965 the original variable captures the respondent’s age in 9 categories.
Code: Age range
18 : 18-20
22 : 20-24
27: 25-29
35: 30-39
45: 40-49
52: 50-54
57: 55-59
62: 60-64
72: 65+

Comparability — Finland [top]

For 1979, the original variable captures the respondent’s age in 11 interval categories.
For confidentiality purposes in 2009, the variable AGE has been coded into 5 year categories in the following way:

Code : Age range
12 : 10-14
17 : 15-19
22 : 20-24
27 : 25-29
32 : 30-34
37 : 35-39
42 : 40-44
47 : 45-49
52 : 50-54
57 : 55-59
62 : 60-64 (top code for 1979)
67 : 65-69
72 : 70-74
77 : 75-79
82 : 80-84
87 : 85-89
90 : 90 and older (top code for 2008)

Comparability — France [top]

For 1966 the original variable captures the respondent’s age in 9 categories.
Code: Age range
18 : 18-20
22 : 20-24
27: 25-29
35: 30-39
45: 40-49
52: 50-54
57: 55-59
62: 60-64
72: 65+

Comparability — Germany [top]

For 1965 the original variable captures the respondent’s age in 9 categories.
Code: Age range
18 : 18-20
22 : 20-24
27: 25-29
35: 30-39
45: 40-49
52: 50-54
57: 55-59
62: 60-64
72: 65+

Comparability — Netherlands [top]

For 2000 and 2005, age at the time of the survey is not available though year and month of birth are available. AGE is the difference between the survey year and birth year.

Comparability — Peru [top]

For 1966 the original variable captures the respondent’s age in 9 categories.
Code: Age range
18 : 18-20
22 : 20-24
27: 25-29
35: 30-39
45: 40-49
52: 50-54
57: 55-59
62: 60-64
72: 65+

Comparability — Serbia [top]

For 1965 the original variable captures the respondent’s age in 9 categories.
Code: Age range
18 : 18-20
22 : 20-24
27: 25-29
35: 30-39
45: 40-49
52: 50-54
57: 55-59
62: 60-64
72: 65+

Comparability — United States [top]

For 1998-2001, the 1999-2001 NSP survey did not initially ask the respondent's age. The survey team did, however, try to recontact participants to ask for their ages; 387 individuals could not be located or did not reply.

Universe

  • All persons respondents.

Availability

  • Armenia: 2008
  • Austria: 1992, 2008
  • Belgium: 1966
  • Bulgaria: 1965, 2001
  • Canada: 2005, 2010, 2015
  • Czech Republic: 1965
  • Finland: 1979, 2009
  • France: 1966, 1985, 2009
  • Germany: 1965
  • Hungary: 1999, 2009
  • Israel: 1991
  • Italy: 2002, 2008
  • Netherlands: 1975, 1980, 1985, 1990, 1995, 2000
  • Peru: 1966
  • Serbia: 1965
  • South Africa: 2000, 2010
  • South Korea: 1999, 2004, 2009
  • Spain: 2002
  • United Kingdom: 1983, 1987, 1995, 2000, 2005
  • United States: 1965, 1975, 1985, 1993, 1995, 1998, 2003-2023