LASTDOBCMC is a 4-digit variable that represents the century-month value (months since 1900) of the birthdate of the woman's most recent child except for the following:
9995 = Not interviewed (female questionnaire)
9996 = Not interviewed (household questionnaire)
9998 = No response or missing
9999 = NIU (not in universe)
Description
LASTDOBCMC reports the century month code (CMC) for the month and year of the birthdate of the woman's most recent child.
Note that January is consistently the most common month across samples (see LASTBIRTHMO). Due to the data entry format of the survey, if a respondent reported a year but not a month for the birthdate of the woman's most recent child, January was the default month. Also due to the data entry format, if a woman skipped the question, the default date was January 1st, 2021. IPUMS has recoded these cases to "No response."
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 relevant events for PMA2020 occurred during the twentieth or twenty-first centuries. The month of the event is added to the previous result.
CMC = (Year - 1900) * 12 + Month
For example, the CMC for June 2002 is:
CMC = (2002 - 1900) * 12 + 6 = 1230
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:
Year = int( ( CMC - 1 )/12 ) + 1900
[int(x) is the integer part of x]
Month = CMC - ( ( Year - 1900 ) * 12 )
The information above is based on "Online Guide to DHS Statistics" (Rutstein and Rojas, 2006).
The question associated with this variable was included in the female questionnaire. For maternal and newborn health samples, this question was included in the female baseline survey.
Universe
- Burkina Faso 2014 Round 1 Female and Household: Women aged 15-49 who have ever given live birth.
- Burkina Faso 2015 Round 2 Female and Household: Women aged 15-49 who have ever given live birth.
- Burkina Faso 2016 Round 4 Female and Household: Women aged 15-49 who have ever given live birth.
- Burkina Faso 2016 Round 3 Female and Household: Women aged 15-49 who have ever given live birth.
- Burkina Faso 2017 Round 5 Female and Household: Women aged 15-49 who have ever given live birth.
- Burkina Faso 2018 Round 6 Female and Household: Women aged 15-49 who have ever given live birth.
- Burkina Faso 2020 Female and Household: Women aged 15-49 who have ever given live birth.
- Burkina Faso 2021 Female and Household: Women aged 15-49 who have ever given live birth.
- Burkina Faso 2022 Female and Household: Women aged 15-49 who have ever given live birth.
- Congo Democratic Republic (Kinshasa) 2013 Round 1 Female and Household: Women aged 15-49 who have ever given live birth.
- Congo Democratic Republic (Kinshasa) 2014 Round 2 Female and Household: Women aged 15-49 who have ever given live birth.
- Congo Democratic Republic (Kongo Central) 2015 Round 4 Female and Household: Women aged 15-49 who have ever given live birth.
- Congo Democratic Republic (Kinshasa) 2015 Round 4 Female and Household: Women aged 15-49 who have ever given live birth.
- Congo Democratic Republic (Kinshasa) 2015 Round 3 Female and Household: Women aged 15-49 who have ever given live birth.
- Congo Democratic Republic (Kongo Central) 2016 Round 5 Female and Household: Women aged 15-49 who have ever given live birth.
- Congo Democratic Republic (Kinshasa) 2016 Round 5 Female and Household: Women aged 15-49 who have ever given live birth.
- Congo Democratic Republic (Kinshasa) 2017 Round 6 Female and Household: Women aged 15-49 who have ever given live birth.
- Congo Democratic Republic (Kongo Central) 2017 Round 6 Female and Household: Women aged 15-49 who have ever given live birth.
- Congo Democratic Republic (Kongo Central) 2018 Round 7 Female and Household: Women aged 15-49 who have ever given live birth.
- Congo Democratic Republic (Kinshasa) 2018 Round 7 Female and Household: Women aged 15-49 who have ever given live birth.
- Congo Democratic Republic (Kinshasa) 2019 Female and Household: Women aged 15-49 who have ever given live birth.
- Congo Democratic Republic (Kongo Central) 2019 Female and Household: Women aged 15-49 who have ever given live birth.
- Congo Democratic Republic (Kinshasa) 2020 Female and Household: Women aged 15-49 who have ever given live birth.
- Congo Democratic Republic (Kongo Central) 2020 Female and Household: Women aged 15-49 who have ever given live birth.
- Congo Democratic Republic (Kongo Central) 2021 Female and Household: Women aged 15-49 who have ever given live birth.
- Congo Democratic Republic (Kinshasa) 2021 Female and Household: Women aged 15-49 who have ever given live birth.
- Cote D'Ivoire 2017 Round 1 Female and Household: Women aged 15-49 who have ever given live birth.
- Cote D'Ivoire 2018 Round 2 Female and Household: Women aged 15-49 who have ever given live birth.
- Cote D'Ivoire 2020 Female and Household: Women aged 15-49 who have ever given live birth.
- Cote D'Ivoire 2021 Female and Household: Women aged 15-49 who have ever given live birth.
- Cote D'Ivoire 2022 Female and Household: Women aged 15-49 who have ever given live birth.
- Ethiopia 2014 Round 1 Female and Household: Women aged 15-49 who have ever given live birth.
- Ethiopia 2014 Round 2 Female and Household: Women aged 15-49 who have ever given live birth.
- Ethiopia 2015 Round 3 Female and Household: Women aged 15-49 who have ever given live birth.
- Ethiopia 2016 Round 4 Female and Household: Women aged 15-49 who have ever given live birth.
- Ethiopia 2017 Round 5 Female and Household: Women aged 15-49 who have ever given live birth.
- Ethiopia 2018 Round 6 Female and Household: Women aged 15-49 who have ever given live birth.
- Ethiopia 2019 PMAET Female and Household: Women aged 15-49 who have ever given live birth.
- Ethiopia 2021 Female and Household: Women aged 15-49 who have ever given live birth.
- Ghana 2013 Round 1 Female and Household: Women aged 15-49 who have ever given live birth.
- Ghana 2014 Round 2 Female and Household: Women aged 15-49 who have ever given live birth.
- Ghana 2014 Round 3 Female and Household: Women aged 15-49 who have ever given live birth.
- Ghana 2015 Round 4 Female and Household: Women aged 15-49 who have ever given live birth.
- Ghana 2016 Round 5 Female and Household: Women aged 15-49 who have ever given live birth.
- Ghana 2017 Round 6 Female and Household: Women aged 15-49 who have ever given live birth.
- India 2016 (Rajasthan) Round 1 Female and Household: Women aged 15-49 who have ever given live birth.
- India 2017 (Rajasthan) Round 3 Female and Household: Women aged 15-49 who have ever given live birth.
- India 2017 (Rajasthan) Round 2 Female and Household: Women aged 15-49 who have ever given live birth.
- India 2018 (Rajasthan) Round 4 Female and Household: Women aged 15-49 who have ever given live birth.
- India 2020 (Rajasthan) Female and Household: Women aged 15-49 who have ever given live birth.
- India 2021 (Rajasthan) Female and Household: Women aged 15-49 who have ever given live birth.
- India 2022 (Rajasthan) Female and Household: Women aged 15-49 who have ever given live birth.
- Indonesia 2015 Round 1 Female and Household: Women aged 15-49 who have ever given live birth.
- Indonesia 2016 Round 2 Female and Household: Women aged 15-49 who have ever given live birth.
- Kenya 2014 Round 2 Female and Household: Women aged 15-49 who have ever given live birth.
- Kenya 2014 Round 1 Female and Household: Women aged 15-49 who have ever given live birth.
- Kenya 2015 Round 3 Female and Household: Women aged 15-49 who have ever given live birth.
- Kenya 2015 Round 4 Female and Household: Women aged 15-49 who have ever given live birth.
- Kenya 2016 Round 5 Female and Household: Women aged 15-49 who have ever given live birth.
- Kenya 2017 Round 6 Female and Household: Women aged 15-49 who have ever given live birth.
- Kenya 2018 Round 7 Female and Household: Women aged 15-49 who have ever given live birth.
- Kenya 2019 Female and Household: Women aged 15-49 who have ever given live birth.
- Kenya 2020 Female and Household: Women aged 15-49 who have ever given live birth.
- Kenya 2021 Female and Household: Women aged 15-49 who have ever given live birth.
- Niger 2015 (Niamey) Round 1 Female and Household: Women aged 15-49 who have ever given live birth.
- Niger 2016 Round 2 Female and Household: Women aged 15-49 who have ever given live birth.
- Niger 2016 (Niamey) Round 3 Female and Household: Women aged 15-49 who have ever given live birth.
- Niger 2017 Round 4 Female and Household: Women aged 15-49 who have ever given live birth.
- Niger 2018 Round 5 Female and Household: Women aged 15-49 who have ever given live birth.
- Niger 2020 Phase 1 Female and Household: Women aged 15-49 who have ever given live birth.
- Niger 2022 Phase 2 Female and Household: Women aged 15-49 who have ever given live birth.
- Niger 2023 Phase 3 Female and Household: Women aged 15-49 who have ever given live birth.
- Nigeria 2014 (Kaduna) Round 1 Female and Household: Women aged 15-49 who have ever given live birth.
- Nigeria 2014 (Lagos) Round 1 Female and Household: Women aged 15-49 who have ever given live birth.
- Nigeria 2015 (Kaduna) Round 2 Female and Household: Women aged 15-49 who have ever given live birth.
- Nigeria 2015 (Lagos) Round 2 Female and Household: Women aged 15-49 who have ever given live birth.
- Nigeria 2016 Round 3 Female and Household: Women aged 15-49 who have ever given live birth.
- Nigeria 2017 Round 4 Female and Household: Women aged 15-49 who have ever given live birth.
- Nigeria 2017 (Oyo) Round 1 Female and Household: Women aged 15-49 who have ever given live birth.
- Nigeria 2018 Round 5 Female and Household: Women aged 15-49 who have ever given live birth.
- Nigeria 2019 (Kano) Female and Household: Women aged 15-49 who have ever given live birth.
- Nigeria 2019 (Lagos) Female and Household: Women aged 15-49 who have ever given live birth.
- Nigeria (Lagos) 2020 Female and Household: Women aged 15-49 who have ever given live birth.
- Nigeria (Kano) 2020 Female and Household: Women aged 15-49 who have ever given live birth.
- Nigeria (Kano) 2021 Female and Household: Women aged 15-49 who have ever given live birth.
- Nigeria (Lagos) 2021 Female and Household: Women aged 15-49 who have ever given live birth.
- Uganda 2014 Round 1 Female and Household: Women aged 15-49 who have ever given live birth.
- Uganda 2015 Round 3 Female and Household: Women aged 15-49 who have ever given live birth.
- Uganda 2015 Round 2 Female and Household: Women aged 15-49 who have ever given live birth.
- Uganda 2016 Round 4 Female and Household: Women aged 15-49 who have ever given live birth.
- Uganda 2017 Round 5 Female and Household: Women aged 15-49 who have ever given live birth.
- Uganda 2018 Round 6 Female and Household: Women aged 15-49 who have ever given live birth.
- Uganda 2019 Female and Household (R6 Follow up): Women aged 15-49 who have ever given live birth.
- Uganda 2020 Female and Household: Women aged 15-49 who have ever given live birth.
- Uganda 2021 Female and Household: Women aged 15-49 who have ever given live birth.
- Uganda 2022 Female and Household: Women aged 15-49 who have ever given live birth.
Availability
- Burkina Faso: 2014-2018, 2020-2022
- Congo (Democratic Republic): 2013-2021
- Cote d'Ivoire: 2017-2018, 2020-2022
- Ethiopia: 2014-2019, 2021
- Ghana: 2013-2017
- India: 2016-2018, 2020-2022
- Indonesia: 2015-2016
- Kenya: 2014-2021
- Niger: 2015-2018, 2020, 2022-2023
- Nigeria: 2014-2021
- Uganda: 2014-2022
