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Codes and Frequencies



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Description

AGE (V012) reports the woman's age. DHS surveys collect information about the woman's age through questions about age at last birthday and date of birth. DHS Recode Manuals provide the following information about how the AGE variable is calculated:

Current age in completed years is calculated from the century month code of the date of birth of the respondent (V011) and the century month code of the date of interview (V008). In a few cases the age in the data file will be different from that reported by the respondent when the respondent's birthday was in the month of interview, but she had not yet had her birthday. If the respondent correctly reported her age at her last birthday (and not her age at her next birthday) then the calculated age was rounded up from the reported age, to avoid inconsistencies between the age and the century month code for the birth.

Comparability — Index

GENERAL
 Mali
 Zimbabwe

Comparability

Apart from universe differences, AGE (V012) has no comparability problems.

A few samples provided supplemental directions to interviewers when collecting information about date of birth or age from respondents who were uncertain (as documented below).

Comparability - Standard DHS

The questions about month and year of birth and age at last birthday, which form the basis for AGE (V012), are included and consistent across all phases of the standard DHS questionnaire.

Comparability — Mali [top]

The survey form for Mali 1987 prompted interviewers to "probe to get the season if not the month" if the woman knew only her year of birth. If neither birthdate nor season were known, the interviewer was to "estimate age according to an historic event or according to a person whose age is known."

Comparability — Zimbabwe [top]

The survey form for Zimbabwe 1988 followed the question "How old were you at your last birthday?" with space for the interviewer to mark "yes" or "no" regarding "Is she sure?"

Universe

  • Afghanistan 2015: Ever-married women age 15-49.
  • Angola 2015: All women age 15-49.
  • Bangladesh 1994: Ever-married women age 10-49.
  • Bangladesh 1997: Ever-married women age 10-49.
  • Bangladesh 2000: Ever-married women age 10-49.
  • Bangladesh 2004: Ever-married women age 10-49.
  • Bangladesh 2007: Ever-married women age 15-49.
  • Bangladesh 2011: Ever-married women age 12-49.
  • Bangladesh 2014: Ever-married women age 15-49.
  • Benin 1996: All women age 15-49.
  • Benin 2001: All women age 15-49.
  • Benin 2006: All women age 15-49.
  • Benin 2011: All women age 15-49.
  • Benin 2017: All women age 15-49.
  • Burkina Faso 1993: All women age 15-49.
  • Burkina Faso 1998: All women age 15-49.
  • Burkina Faso 2003: All women age 15-49.
  • Burkina Faso 2010: All women age 15-49.
  • Burundi 1987: All women age 15-49.
  • Burundi 2010: All women age 15-49.
  • Burundi 2016: All women age 15-49.
  • Cameroon 1991: All women age 15-49.
  • Cameroon 1998: All women age 15-49.
  • Cameroon 2004: All women age 15-49.
  • Cameroon 2011: All women age 15-49.
  • Cameroon 2018: All women age 15-64.
  • Central African Republic 1995: All women age 15-49.
  • Chad 1996: All women age 15-49.
  • Chad 2004: All women age 15-49.
  • Chad 2014: All women age 15-49.
  • Congo (Democratic Republic) 2007: All women age 15-49.
  • Congo (Democratic Republic) 2013: All women age 15-49.
  • Congo Brazzaville 2005: All women age 15-49.
  • Congo Brazzaville 2011: All women age 15-49.
  • Cote d'Ivoire 1994: All women age 15-49.
  • Cote d'Ivoire 1998: All women age 15-49.
  • Cote d'Ivoire 2011: All women age 15-49.
  • Egypt 1988: Ever-married women age 15-49.
  • Egypt 1992: Ever-married women age 15-49.
  • Egypt 1995: Ever-married women age 15-49.
  • Egypt 2000: Ever-married women age 15-49.
  • Egypt 2003: Ever-married women age 15-49.
  • Egypt 2005: Ever-married women age 15-49.
  • Egypt 2008: Ever-married women age 15-49.
  • Egypt 2014: Ever-married women age 15-49.
  • Eswatini (Swaziland) 2006: All women age 15-49.
  • Ethiopia 2000: All women age 15-49.
  • Ethiopia 2005: All women age 15-49.
  • Ethiopia 2011: All women age 15-49.
  • Ethiopia 2016: All women age 15-49.
  • Ethiopia 2019: All women age 15-49.
  • Ghana 1988: All women age 15-49.
  • Ghana 1993: All women age 15-49.
  • Ghana 1998: All women age 15-49.
  • Ghana 2003: All women age 15-49.
  • Ghana 2008: All women age 15-49.
  • Ghana 2014: All women age 15-49.
  • Ghana 2016: All women age 15-49.
  • Guinea 1999: All women age 15-49.
  • Guinea 2005: All women age 15-49.
  • Guinea 2012: All women age 15-49.
  • Guinea 2018: All women age 15-49.
  • India 1992: Ever-married women age 13-49.
  • India 1998: Ever-married women age 15-49.
  • India 2005: All women age 15-49.
  • India 2015: All women age 15-49.
  • Jordan 1990: Ever-married women age 15-49.
  • Jordan 1997: Ever-married women age 15-49.
  • Jordan 2002: Ever-married women age 15-49.
  • Jordan 2007: Ever-married women age 15-49.
  • Jordan 2009: Ever-married women age 15-49.
  • Jordan 2012: Ever-married women age 15-49.
  • Jordan 2017: Ever-married women age 15-49.
  • Kenya 1989: All women age 15-49.
  • Kenya 1993: All women age 15-49.
  • Kenya 1998: All women age 15-49.
  • Kenya 2003: All women age 15-49.
  • Kenya 2008: All women age 15-49.
  • Kenya 2014: All women age 15-49.
  • Lesotho 2004: All women age 15-49.
  • Lesotho 2009: All women age 15-49.
  • Lesotho 2014: All women age 15-49.
  • Liberia 1986: All women age 15-49.
  • Liberia 2007: All women age 15-49.
  • Liberia 2013: All women age 15-49.
  • Madagascar 1992: All women age 15-49.
  • Madagascar 1997: All women age 15-49.
  • Madagascar 2003: All women age 15-49.
  • Madagascar 2008: All women age 15-49.
  • Malawi 1992: All women age 15-49.
  • Malawi 2000: All women age 15-49.
  • Malawi 2004: All women age 15-49.
  • Malawi 2010: All women age 15-49.
  • Malawi 2016: All women age 15-49.
  • Mali 1987: All women age 15-49.
  • Mali 1995: All women age 15-49.
  • Mali 2001: All women age 15-49.
  • Mali 2006: All women age 15-49.
  • Mali 2012: All women age 15-49.
  • Mali 2018: All women age 15-49.
  • Morocco 1987: Ever-married women age 15-49.
  • Morocco 1992: All women age 15-49.
  • Morocco 2003: All women age 15-49.
  • Mozambique 1997: All women age 15-49.
  • Mozambique 2003: All women age 15-49.
  • Mozambique 2011: All women age 15-49.
  • Myanmar 2015: All women age 15-49.
  • Namibia 1992: All women age 15-49.
  • Namibia 2000: All women age 15-49.
  • Namibia 2006: All women age 15-49.
  • Namibia 2013: All women age 15-64.
  • Nepal 1996: Ever-married women age 15-49.
  • Nepal 2001: Ever-married women age 15-49.
  • Nepal 2006: All women age 15-49.
  • Nepal 2011: All women age 15-49.
  • Nepal 2016: All women age 15-49.
  • Niger 1992: All women age 15-49.
  • Niger 1998: All women age 15-49.
  • Niger 2006: All women age 15-49.
  • Niger 2012: All women age 15-49.
  • Nigeria 1990: All women age 15-49.
  • Nigeria 1999: All women age 10-49.
  • Nigeria 2003: All women age 15-49.
  • Nigeria 2008: All women age 15-49.
  • Nigeria 2013: All women age 15-49.
  • Nigeria 2018: All women age 15-49.
  • Pakistan 1991: Ever-married women age 15-49.
  • Pakistan 2006: Ever-married women age 15-49.
  • Pakistan 2012: Ever-married women age 15-49.
  • Pakistan 2017: Ever-married women age 15-49.
  • Rwanda 1992: All women age 15-49.
  • Rwanda 2000: All women age 15-49.
  • Rwanda 2005: All women age 15-49.
  • Rwanda 2008: All women age 15-49.
  • Rwanda 2010: All women age 15-49.
  • Rwanda 2014: All women age 15-49.
  • Senegal 1986: All women age 15-49.
  • Senegal 1992: All women age 15-49.
  • Senegal 1997: All women age 15-49.
  • Senegal 2005: All women age 15-49.
  • Senegal 2010: All women age 15-49.
  • Senegal 2012: All women age 15-49.
  • Senegal 2014: All women age 15-49.
  • Senegal 2015: All women age 15-49.
  • Senegal 2016: All women age 15-49.
  • Senegal 2017: All women age 15-49.
  • South Africa 1998: All women age 15-49.
  • South Africa 2016: All women age 15-49.
  • Sri Lanka 1987: Ever-married women age 15-49.
  • Sudan 1989: Ever-married women age 15-49.
  • Tanzania 1991: All women age 15-49.
  • Tanzania 1996: All women age 15-49.
  • Tanzania 1999: All women age 15-49.
  • Tanzania 2004: All women age 15-49.
  • Tanzania 2010: All women age 15-49.
  • Tanzania 2015: All women age 15-49.
  • Togo 1988: All women age 15-49.
  • Togo 1998: All women age 15-49.
  • Togo 2013: All women age 15-49.
  • Tunisia 1988: Ever-married women age 15-49.
  • Uganda 1988: All women age 15-49.
  • Uganda 1995: All women age 15-49.
  • Uganda 2001: All women age 15-49.
  • Uganda 2006: All women age 15-49.
  • Uganda 2011: All women age 15-49.
  • Uganda 2016: All women age 15-49.
  • Yemen 1991: Ever-married women age 15-54.
  • Yemen 2013: All women age 15-49.
  • Zambia 1992: All women age 15-49.
  • Zambia 1996: All women age 15-49.
  • Zambia 2001: All women age 15-49.
  • Zambia 2007: All women age 15-49.
  • Zambia 2013: All women age 15-49.
  • Zambia 2018: All women age 15-49.
  • Zimbabwe 1988: All women age 15-49.
  • Zimbabwe 1994: All women age 15-49.
  • Zimbabwe 1999: All women age 15-49.
  • Zimbabwe 2005: All women age 15-49.
  • Zimbabwe 2010: All women age 15-49.
  • Zimbabwe 2015: All women age 15-49.
  • Afghanistan: 2015-C, 2015-W, 2015-B, 2015-W
  • Angola: 2015-W, 2015-C, 2015-B, 2015-W
  • Bangladesh: 1994-W, 1994-C, 1994-W, 1994-B, 1997-W, 1997-W, 1997-B, 1997-C, 2000-W, 2000-W, 2000-B, 2000-C, 2004-W, 2004-W, 2004-B, 2004-C, 2007-W, 2007-W, 2007-B, 2007-C, 2011-W, 2011-C, 2011-W, 2011-B, 2014-W, 2014-B, 2014-C, 2014-W
  • Benin: 1996-C, 1996-B, 1996-W, 2001-W, 2001-C, 2001-B, 2006-W, 2006-B, 2006-C, 2006-W, 2011-B, 2011-C, 2011-W, 2011-W, 2017-W, 2017-C, 2017-B, 2017-W
  • Burkina Faso: 1993-W, 1993-C, 1993-B, 1998-B, 1998-C, 1998-W, 2003-W, 2003-B, 2003-C, 2003-W, 2010-W, 2010-B, 2010-C, 2010-W
  • Burundi: 1987-W, 1987-C, 1987-B, 2010-W, 2010-C, 2010-B, 2010-W, 2016-W, 2016-C, 2016-B, 2016-W
  • Cameroon: 1991-W, 1991-C, 1991-B, 1998-W, 1998-B, 1998-C, 2004-B, 2004-C, 2004-W, 2011-C, 2011-B, 2011-W, 2018-W, 2018-C, 2018-B
  • Central African Republic: 1995-W, 1995-C, 1995-B
  • Chad: 1996-W, 1996-C, 1996-B, 2004-W, 2004-C, 2004-B, 2014-W, 2014-C, 2014-B
  • Congo (Democratic Republic): 2007-W, 2007-C, 2007-B, 2013-W, 2013-C, 2013-B
  • Congo Brazzaville: 2005-W, 2005-C, 2005-B, 2011-W, 2011-C, 2011-B
  • Cote d'Ivoire: 1994-W, 1994-C, 1994-B, 1998-W, 1998-C, 1998-B, 2011-W, 2011-C, 2011-B
  • Egypt: 1988-W, 1988-B, 1988-C, 1992-W, 1992-W, 1992-B, 1992-C, 1995-C, 1995-B, 1995-W, 1995-W, 2000-C, 2000-W, 2000-B, 2000-W, 2003-B, 2003-C, 2003-W, 2003-W, 2005-B, 2005-W, 2005-W, 2005-C, 2008-B, 2008-W, 2008-C, 2008-W, 2014-B, 2014-C, 2014-W, 2014-W
  • Eswatini (Swaziland): 2006-W, 2006-C, 2006-B, 2006-W
  • Ethiopia: 2000-W, 2000-C, 2000-B, 2005-W, 2005-W, 2005-B, 2005-C, 2011-C, 2011-B, 2011-W, 2011-W, 2016-W, 2016-B, 2016-C, 2016-W, 2019-W, 2019-C, 2019-B
  • Ghana: 1988-B, 1988-C, 1988-W, 1993-W, 1993-B, 1993-C, 1998-C, 1998-B, 1998-W, 2003-C, 2003-W, 2003-B, 2003-W, 2008-B, 2008-W, 2008-W, 2008-C, 2014-W, 2014-B, 2014-C, 2014-W, 2016-W, 2016-C
  • Guinea: 1999-C, 1999-B, 1999-W, 2005-W, 2005-W, 2005-C, 2005-B, 2012-B, 2012-C, 2012-W, 2018-W, 2018-C, 2018-B, 2018-W
  • India: 1992-W, 1992-C, 1992-B, 1998-W, 1998-B, 1998-C, 2005-C, 2005-B, 2005-W, 2005-W, 2015-W, 2015-C, 2015-B, 2015-W
  • Jordan: 1990-W, 1990-W, 1990-C, 1990-B, 1997-W, 1997-W, 1997-B, 1997-C, 2002-C, 2002-B, 2002-W, 2002-W, 2007-C, 2007-B, 2007-W, 2007-W, 2009-C, 2009-W, 2009-W, 2009-B, 2012-W, 2012-B, 2012-C, 2012-W, 2017-W, 2017-C, 2017-B, 2017-W
  • Kenya: 1989-W, 1989-C, 1989-B, 1993-W, 1993-B, 1993-C, 1998-C, 1998-W, 1998-B, 1998-W, 2003-C, 2003-W, 2003-B, 2003-W, 2008-W, 2008-B, 2008-C, 2008-W, 2014-B, 2014-C, 2014-W, 2014-W
  • Lesotho: 2004-C, 2004-B, 2004-W, 2009-W, 2009-C, 2009-B, 2009-W, 2014-W, 2014-B, 2014-C, 2014-W
  • Liberia: 1986-W, 1986-C, 1986-B, 2007-W, 2007-C, 2007-B, 2013-W, 2013-C, 2013-B, 2013-W
  • Madagascar: 1992-C, 1992-B, 1992-W, 1997-W, 1997-C, 1997-B, 2003-B, 2003-W, 2003-C, 2003-W, 2008-B, 2008-C, 2008-W, 2008-W
  • Malawi: 1992-C, 1992-W, 1992-B, 2000-W, 2000-W, 2000-B, 2000-C, 2004-B, 2004-W, 2004-C, 2004-W, 2010-B, 2010-C, 2010-W, 2010-W, 2016-W, 2016-B, 2016-C, 2016-W
  • Mali: 1987-C, 1987-W, 1987-B, 1995-W, 1995-C, 1995-B, 2001-W, 2001-W, 2001-C, 2001-B, 2006-B, 2006-W, 2006-C, 2006-W, 2012-W, 2012-W, 2012-C, 2012-B, 2018-W, 2018-C, 2018-B, 2018-W
  • Morocco: 1987-W, 1987-C, 1987-B, 1992-W, 1992-C, 1992-B, 1992-W, 2003-W, 2003-C, 2003-B, 2003-W
  • Mozambique: 1997-W, 1997-C, 1997-B, 2003-W, 2003-C, 2003-W, 2003-B, 2011-W, 2011-B, 2011-C, 2011-W
  • Myanmar: 2015-C, 2015-W, 2015-B, 2015-W
  • Namibia: 1992-C, 1992-B, 1992-W, 2000-W, 2000-C, 2000-B, 2006-B, 2006-W, 2006-C, 2006-W, 2013-B, 2013-C, 2013-W, 2013-W
  • Nepal: 1996-C, 1996-W, 1996-B, 2001-W, 2001-B, 2001-C, 2006-C, 2006-B, 2006-W, 2006-W, 2011-C, 2011-B, 2011-W, 2011-W, 2016-W, 2016-B, 2016-C, 2016-W
  • Niger: 1992-W, 1992-C, 1992-B, 1998-B, 1998-C, 1998-W, 2006-W, 2006-B, 2006-C, 2006-W, 2012-W, 2012-B, 2012-C, 2012-W
  • Nigeria: 1990-W, 1990-B, 1990-C, 1999-B, 1999-C, 1999-W, 2003-C, 2003-B, 2003-W, 2008-W, 2008-B, 2008-C, 2008-W, 2013-B, 2013-C, 2013-W, 2013-W, 2018-W, 2018-C, 2018-B, 2018-W
  • Pakistan: 1991-W, 1991-C, 1991-B, 2006-W, 2006-B, 2006-C, 2012-B, 2012-C, 2012-W, 2012-W, 2017-W, 2017-C, 2017-B, 2017-W
  • Rwanda: 1992-C, 1992-B, 1992-W, 2000-W, 2000-W, 2000-C, 2000-B, 2005-W, 2005-W, 2005-B, 2005-C, 2008-W, 2008-C, 2008-B, 2010-W, 2010-B, 2010-C, 2010-W, 2014-W, 2014-B, 2014-W, 2014-C
  • Senegal: 1986-W, 1986-B, 1986-C, 1992-W, 1992-B, 1992-C, 1997-C, 1997-W, 1997-B, 2005-C, 2005-W, 2005-B, 2005-W, 2010-W, 2010-W, 2010-B, 2010-C, 2012-W, 2012-B, 2012-C, 2012-W, 2014-B, 2014-W, 2014-C, 2014-W, 2015-W, 2015-B, 2015-W, 2015-C, 2016-B, 2016-C, 2016-W, 2016-W, 2017-W, 2017-C, 2017-B, 2017-W
  • South Africa: 1998-W, 1998-C, 1998-B, 2016-W, 2016-C, 2016-B, 2016-W
  • Sri Lanka: 1987-W, 1987-C, 1987-B
  • Sudan: 1989-W, 1989-C, 1989-B
  • Tanzania: 1991-W, 1991-C, 1991-B, 1996-W, 1996-B, 1996-C, 1999-C, 1999-B, 1999-W, 2004-C, 2004-B, 2004-W, 2004-W, 2010-W, 2010-B, 2010-C, 2010-W, 2015-W, 2015-B, 2015-C, 2015-W
  • Togo: 1988-W, 1988-C, 1988-B, 1998-W, 1998-C, 1998-B, 2013-W, 2013-C, 2013-B
  • Tunisia: 1988-W, 1988-C, 1988-B
  • Uganda: 1988-C, 1988-W, 1988-B, 1995-W, 1995-C, 1995-B, 2001-W, 2001-B, 2001-C, 2001-W, 2006-B, 2006-C, 2006-W, 2006-W, 2011-W, 2011-C, 2011-W, 2011-B, 2016-W, 2016-C, 2016-B, 2016-W
  • Yemen: 1991-W, 1991-C, 1991-B, 2013-W, 2013-C, 2013-B, 2013-W
  • Zambia: 1992-C, 1992-W, 1992-B, 1996-W, 1996-C, 1996-B, 2001-B, 2001-W, 2001-C, 2007-B, 2007-W, 2007-W, 2007-C, 2013-W, 2013-B, 2013-C, 2013-W, 2018-W, 2018-C, 2018-B, 2018-W
  • Zimbabwe: 1988-W, 1988-C, 1988-B, 1994-W, 1994-W, 1994-B, 1994-C, 1999-C, 1999-B, 1999-W, 1999-W, 2005-C, 2005-B, 2005-W, 2005-W, 2010-C, 2010-W, 2010-W, 2010-B, 2015-W, 2015-B, 2015-C, 2015-W