Codes and Frequencies
Description
AGEAT1STBIRTH (V212) reports the age of the woman at the time of her first birth. This variable is calculated by using the century month code (CMC) of the date of the woman's first birth (DOB1STKIDCMC) and the CMC of the woman's date of birth (DOBCMC).
Century month codes (CMC) are particularly useful for checking the consistency of dates, calculating intervals between events, and imputing dates when the information for an event is missing or partially complete.
Century month codes (CMC) are calculated by multiplying by 12 the difference between the year of an event and 1900. The year 1900 was chosen as the reference period because all of the DHS-relevant events occurred during the twentieth or twenty-first centuries. The month of the event is added to the previous result.
For example, the CMC for June 2002 is:
In other words, 1,230 months have elapsed between January 1900 and June 2002. Starting with CMC figures, one can calculate the month and year using the following formulas:
For more information, visit The DHS Program website to find the latest Guide to DHS Statistics.
Comparability
Apart from universe differences, AGEAT1STBIRTH (V212) is largely comparable across samples. Very young ages (e.g., under age 10) appearing as values in some samples may reflect rounding down (say, to a number ending in 5 or 0) of reported current age by some respondents.
Comparability - Standard DHS
AGEAT1STBIRTH (V212) is a standard recode variable that is included and consistent across all phases of the standard DHS questionnaire.
Universe
- Afghanistan 2015: Ever-married women age 15-49 who have ever given birth.
- Angola 2015: Women age 15-49 who have ever given birth.
- Bangladesh 1994: Ever-married women age 10-49 who have ever given birth.
- Bangladesh 1997: Ever-married women age 10-49 who have ever given birth.
- Bangladesh 2000: Ever-married women age 10-49 who have ever given birth.
- Bangladesh 2004: Ever-married women age 10-49 who have ever given birth.
- Bangladesh 2007: Ever-married women age 15-49 who have ever given birth.
- Bangladesh 2011: Ever-married women age 12-49 who have ever given birth.
- Bangladesh 2014: Ever-married women age 15-49 who have ever given birth.
- Bangladesh 2018: Ever-married women age 15-49 who have ever given birth.
- Benin 1996: Women age 15-49 who have ever given birth.
- Benin 2001: Women age 15-49 who have ever given birth.
- Benin 2006: Women age 15-49 who have ever given birth.
- Benin 2011: Women age 15-49 who have ever given birth.
- Benin 2017: Women age 15-49 who have ever given birth.
- Burkina Faso 1993: Women age 15-49 who have ever given birth.
- Burkina Faso 1998: Women age 15-49 who have ever given birth.
- Burkina Faso 2003: Women age 15-49 who have ever given birth.
- Burkina Faso 2010: Women age 15-49 who have ever given birth.
- Burundi 1987: Women age 15-49 who have ever given birth.
- Burundi 2010: Women age 15-49 who have ever given birth.
- Burundi 2016: Women age 15-49 who have ever given birth.
- Cameroon 1991: Women age 15-49 who have ever given birth.
- Cameroon 1998: Women age 15-49 who have ever given birth.
- Cameroon 2004: Women age 15-49 who have ever given birth.
- Cameroon 2011: Women age 15-49 who have ever given birth.
- Cameroon 2018: Women age 15-49 who have ever given birth.
- Central African Republic 1995: Women age 15-49 who have ever given birth.
- Chad 1996: Women age 15-49 who have ever given birth.
- Chad 2004: Women age 15-49 who have ever given birth.
- Chad 2014: Women age 15-49 who have ever given birth.
- Comoros 1996: Women age 15-49 who have ever given birth.
- Comoros 2012: Women age 15-49 who have ever given birth.
- Congo (Democratic Republic) 2007: Women age 15-49 who have ever given birth.
- Congo (Democratic Republic) 2013: Women age 15-49 who have ever given birth.
- Congo Brazzaville 2005: Women age 15-49 who have ever given birth.
- Congo Brazzaville 2011: Women age 15-49 who have ever given birth.
- Cote d'Ivoire 1994: Women age 15-49 who have ever given birth.
- Cote d'Ivoire 1998: Women age 15-49 who have ever given birth.
- Cote d'Ivoire 2011: Women age 15-49 who have ever given birth.
- Egypt 1988: Ever-married women age 15-49 who have ever given birth.
- Egypt 1992: Ever-married women age 15-49 who have ever given birth.
- Egypt 1995: Ever-married women age 15-49 who have ever given birth.
- Egypt 2000: Ever-married women age 15-49 who have ever given birth.
- Egypt 2003: Ever-married women age 15-49 who have ever given birth.
- Egypt 2005: Ever-married women age 15-49 who have ever given birth.
- Egypt 2008: Ever-married women age 15-49 who have ever given birth.
- Egypt 2014: Ever-married women age 15-49 who have ever given birth.
- Eswatini (Swaziland) 2006: Women age 15-49 who have ever given birth.
- Ethiopia 2000: Women age 15-49 who have ever given birth.
- Ethiopia 2005: Women age 15-49 who have ever given birth.
- Ethiopia 2011: Women age 15-49 who have ever given birth.
- Ethiopia 2016: Women age 15-49 who have ever given birth.
- Ethiopia 2019: Women age 15-49 who have ever given birth.
- Gabon 2000: Women age 15-49 who have ever given birth.
- Gabon 2012: Women age 15-49 who have ever given birth.
- Gambia 2013: Women age 15-49 who have ever given birth.
- Gambia 2019: Women age 15-49 who have ever given birth.
- Ghana 1988: Women age 15-49 who have ever given birth.
- Ghana 1993: Women age 15-49 who have ever given birth.
- Ghana 1998: Women age 15-49 who have ever given birth.
- Ghana 2003: Women age 15-49 who have ever given birth.
- Ghana 2008: Women age 15-49 who have ever given birth.
- Ghana 2014: Women age 15-49 who have ever given birth.
- Guinea 1999: Women age 15-49 who have ever given birth.
- Guinea 2005: Women age 15-49 who have ever given birth.
- Guinea 2012: Women age 15-49 who have ever given birth.
- Guinea 2018: Women age 15-49 who have ever given birth.
- India 1992: Ever-married women age 13-49 who have ever given birth.
- India 1998: Ever-married women age 15-49 who have ever given birth.
- India 2005: Women age 15-49 who have ever given birth.
- India 2015: Women age 15-49 who have ever given birth.
- India 2019: Women age 15-49 who have ever given birth.
- Jordan 1990: Ever-married women age 15-49 who have ever given birth.
- Jordan 1997: Ever-married women age 15-49 who have ever given birth.
- Jordan 2002: Ever-married women age 15-49 who have ever given birth.
- Jordan 2007: Ever-married women age 15-49 who have ever given birth.
- Jordan 2009: Ever-married women age 15-49 who have ever given birth.
- Jordan 2012: Ever-married women age 15-49 who have ever given birth.
- Jordan 2017: Ever-married women age 15-49 who have ever given birth.
- Kenya 1989: Women age 15-49 who have ever given birth.
- Kenya 1993: Women age 15-49 who have ever given birth.
- Kenya 1998: Women age 15-49 who have ever given birth.
- Kenya 2003: Women age 15-49 who have ever given birth.
- Kenya 2008: Women age 15-49 who have ever given birth.
- Kenya 2014: Women age 15-49 who have ever given birth.
- Lesotho 2004: Women age 15-49 who have ever given birth.
- Lesotho 2009: Women age 15-49 who have ever given birth.
- Lesotho 2014: Women age 15-49 who have ever given birth.
- Liberia 1986: Women age 15-49 who have ever given birth.
- Liberia 2007: Women age 15-49 who have ever given birth.
- Liberia 2013: Women age 15-49 who have ever given birth.
- Liberia 2019: Women age 15-49 who have ever given birth.
- Madagascar 1992: Women age 15-49 who have ever given birth.
- Madagascar 1997: Women age 15-49 who have ever given birth.
- Madagascar 2003: Women age 15-49 who have ever given birth.
- Madagascar 2008: Women age 15-49 who have ever given birth.
- Madagascar 2021: Women age 15-49 who have ever given birth.
- Malawi 1992: Women age 15-49 who have ever given birth.
- Malawi 2000: Women age 15-49 who have ever given birth.
- Malawi 2004: Women age 15-49 who have ever given birth.
- Malawi 2010: Women age 15-49 who have ever given birth.
- Malawi 2016: Women age 15-49 who have ever given birth.
- Mali 1987: Women age 15-49 who have ever given birth.
- Mali 1995: Women age 15-49 who have ever given birth.
- Mali 2001: Women age 15-49 who have ever given birth.
- Mali 2006: Women age 15-49 who have ever given birth.
- Mali 2012: Women age 15-49 who have ever given birth.
- Mali 2018: Women age 15-49 who have ever given birth.
- Morocco 1987: Ever-married women age 15-49 who have ever given birth.
- Morocco 1992: Women age 15-49 who have ever given birth.
- Morocco 2003: Women age 15-49 who have ever given birth.
- Mozambique 1997: Women age 15-49 who have ever given birth.
- Mozambique 2003: Women age 15-49 who have ever given birth.
- Mozambique 2011: Women age 15-49 who have ever given birth.
- Myanmar 2015: Women age 15-49 who have ever given birth.
- Namibia 1992: Women age 15-49 who have ever given birth.
- Namibia 2000: Women age 15-49 who have ever given birth.
- Namibia 2006: Women age 15-49 who have ever given birth.
- Namibia 2013: Women age 15-49 who have ever given birth.
- Nepal 1996: Ever-married women age 15-49 who have ever given birth.
- Nepal 2001: Ever-married women age 15-49 who have ever given birth.
- Nepal 2006: Women age 15-49 who have ever given birth.
- Nepal 2011: Women age 15-49 who have ever given birth.
- Nepal 2016: Women age 15-49 who have ever given birth.
- Niger 1992: Women age 15-49 who have ever given birth.
- Niger 1998: Women age 15-49 who have ever given birth.
- Niger 2006: Women age 15-49 who have ever given birth.
- Niger 2012: Women age 15-49 who have ever given birth.
- Nigeria 1990: Women age 15-49 who have ever given birth.
- Nigeria 1999: Women age 10-49 who have ever given birth.
- Nigeria 2003: Women age 15-49 who have ever given birth.
- Nigeria 2008: Women age 15-49 who have ever given birth.
- Nigeria 2013: Women age 15-49 who have ever given birth.
- Nigeria 2018: Women age 15-49 who have ever given birth.
- Pakistan 1991: Ever-married women age 15-49 who have ever given birth.
- Pakistan 2006: Ever-married women age 15-49 who have ever given birth.
- Pakistan 2012: Ever-married women age 15-49 who have ever given birth.
- Pakistan 2017: Ever-married women age 15-49 who have ever given birth.
- Rwanda 1992: Women age 15-49 who have ever given birth.
- Rwanda 2000: Women age 15-49 who have ever given birth.
- Rwanda 2005: Women age 15-49 who have ever given birth.
- Rwanda 2008: Women age 15-49 who have ever given birth.
- Rwanda 2010: Women age 15-49 who have ever given birth.
- Rwanda 2014: Women age 15-49 who have ever given birth.
- Rwanda 2019: Women age 15-49 who have ever given birth.
- Sao Tome 2008: Women age 15-49 who have ever given birth.
- Senegal 1986: Women age 15-49 who have ever given birth.
- Senegal 1992: Women age 15-49 who have ever given birth.
- Senegal 1997: Women age 15-49 who have ever given birth.
- Senegal 2005: Women age 15-49 who have ever given birth.
- Senegal 2010: Women age 15-49 who have ever given birth.
- Senegal 2012: Women age 15-49 who have ever given birth.
- Senegal 2014: Women age 15-49 who have ever given birth.
- Senegal 2015: Women age 15-49 who have ever given birth.
- Senegal 2016: Women age 15-49 who have ever given birth.
- Senegal 2017: Women age 15-49 who have ever given birth.
- Sierra Leone 2008: Women age 15-49 who have ever given birth.
- Sierra Leone 2013: Women age 15-49 who have ever given birth.
- Sierra Leone 2019: Women age 15-49 who have ever given birth.
- South Africa 1998: Women age 15-49 who have ever given birth.
- South Africa 2016: Women age 15-49 who have ever given birth.
- Sri Lanka 1987: Ever-married women age 15-49 who have ever given birth.
- Sudan 1989: Ever-married women age 15-49 who have ever given birth.
- Tanzania 1991: Women age 15-49 who have ever given birth.
- Tanzania 1996: Women age 15-49 who have ever given birth.
- Tanzania 1999: Women age 15-49 who have ever given birth.
- Tanzania 2004: Women age 15-49 who have ever given birth.
- Tanzania 2010: Women age 15-49 who have ever given birth.
- Tanzania 2015: Women age 15-49 who have ever given birth.
- Togo 1988: Women age 15-49 who have ever given birth.
- Togo 1998: Women age 15-49 who have ever given birth.
- Togo 2013: Women age 15-49 who have ever given birth.
- Tunisia 1988: Ever-married women age 15-49 who have ever given birth.
- Uganda 1988: Women age 15-49 who have ever given birth.
- Uganda 1995: Women age 15-49 who have ever given birth.
- Uganda 2001: Women age 15-49 who have ever given birth.
- Uganda 2006: Women age 15-49 who have ever given birth.
- Uganda 2011: Women age 15-49 who have ever given birth.
- Uganda 2016: Women age 15-49 who have ever given birth.
- Yemen 1991: Ever-married women age 15-54 who have ever given birth.
- Yemen 2013: Ever-married women age 15-49 who have ever given birth.
- Zambia 1992: Women age 15-49 who have ever given birth.
- Zambia 1996: Women age 15-49 who have ever given birth.
- Zambia 2001: Women age 15-49 who have ever given birth.
- Zambia 2007: Women age 15-49 who have ever given birth.
- Zambia 2013: Women age 15-49 who have ever given birth.
- Zimbabwe 1988: Women age 15-49 who have ever given birth.
- Zimbabwe 1994: Women age 15-49 who have ever given birth.
- Zimbabwe 1999: Women age 15-49 who have ever given birth.
- Zimbabwe 2005: Women age 15-49 who have ever given birth.
- Zimbabwe 2010: Women age 15-49 who have ever given birth.
- Zimbabwe 2015: Women age 15-49 who have ever given birth.