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MENSTLASTSTART
Start of last menstrual period
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Codes and Frequencies



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Description

MENSTLASTSTART denotes the first day of the last menstrual period. This variable is a combination of MENSTLASTSTARTUNIT, which indicates the unit for the reported number (days, weeks, months, years, other), and MENSTLASTSTARTNUM, which indicates the actual number.

Both the unit and the number are embedded in the variable's coding, such that the first digit signifies unit (1= days, 2= weeks, 3= months, 4=years) and the next two digits report the actual number of days, weeks, months, or years. Therefore, numbers in the 100s mean time of the last period was reported in days, numbers in the 200s mean it was reported in weeks, numbers in the 300s mean it was reported in months, and numbers in the 400s mean it was reported in years. For example, 101 means "1 day" and 120 means “20 days”. Similarly, 201 means "1 week" and 220 means “20 weeks”; 301 means "1 month" and 320 means “20 months”; finally, 401 means "1 year" and 420 means “20 years”.

Comparability

The data are comparable apart from one significant universe difference: some samples directed the survey question only to ever-married women.

Most samples report a maximum value of 30. Values higher than 30 have been combined into a single top-code.

Universe

  • Afghanistan 2022: Women age 15-49
  • Algeria 2012: Women age 15-49 currently married or in a union
  • Algeria 2018: Women age 15-49 currently married or in a union
  • Argentina 2019: Women age 15-49
  • Bangladesh 2012: Women age 15-49 currently married or in a union
  • Bangladesh 2019: Women age 15-49 currently married or in a union
  • Barbados 2012: Women age 15-49
  • Belarus 2012: Women age 15-49
  • Belarus 2019: Women age 15-49
  • Belize 2011: Women age 15-49
  • Belize 2015: Women age 15-49
  • Benin 2014: Women age 15-49
  • Benin 2021: Women age 15-49
  • Bhutan 2010: Women age 15-49
  • Bosnia and Herzegovina (Roma) 2011: Women age 15-49
  • Bosnia and Herzegovina 2011: Women age 15-49
  • Cameroon 2014: Women age 15-49
  • Central African Republic 2010: Women age 15-49
  • Central African Republic 2018: Women age 15-49 currently married or in a union
  • Chad 2010: Women age 15-49
  • Chad 2019: Women age 15-49 currently married or in a union
  • Comoros 2022: Women age 15-49
  • Congo 2014: Women age 15-49
  • Congo Democratic Republic 2010: Women age 15-49
  • Congo Democratic Republic 2017: Women age 15-49
  • Costa Rica 2011: Women age 15-49
  • Costa Rica 2018: Women age 15-49
  • Cote D'Ivoire 2016: Women age 15-49
  • Cuba 2010: Women age 15-49
  • Cuba 2014: Women age 15-49
  • Cuba 2019: Women age 15-49
  • Dominican Republic 2014: Women age 15-49
  • Dominican Republic 2019: Women age 15-49
  • El Salvador 2014: Women age 15-49
  • Eswatini (Swaziland) 2010: Women age 15-49
  • Eswatini (Swaziland) 2014: Women age 15-49
  • Eswatini (Swaziland) 2021: Women age 15-49
  • Fiji 2021: Women age 15-49
  • Gambia 2010: Women age 15-49
  • Gambia 2018: Women age 15-49
  • Georgia 2018: Women age 15-49
  • Ghana (Accra) 2010: Women age 15-49
  • Ghana 2011: Women age 15-49
  • Ghana 2017: Women age 15-49
  • Guinea 2016: Women age 15-49
  • Guinea Bissau 2014: Women age 15-49
  • Guinea Bissau 2018: Women age 15-49
  • Guyana 2014: Women age 15-49
  • Guyana 2019: Women age 15-49
  • Honduras 2019: Women age 15-49
  • Indonesia (Papua) 2011: Women age 15-49
  • Indonesia (West Papua) 2011: Women age 15-49
  • Iraq 2011: Women age 15-49 currently married or in a union
  • Iraq 2018: Ever-married women age 15-49
  • Kazakhstan 2010: Women age 15-49
  • Kazakhstan 2015: Women age 15-49
  • Kenya (Bungoma) 2013: Women age 15-49
  • Kenya (Kakamega) 2013: Women age 15-49
  • Kenya (Turkana County) 2013: Women age 15-49
  • Kiribati 2018: Women age 15-49
  • Kosovo 2013: Women age 15-49
  • Kosovo (Roma) 2013: Women age 15-49
  • Kosovo 2019: Women age 15-49
  • Kosovo (Roma) 2019: Women age 15-49
  • Kyrgyzstan 2014: Women age 15-49
  • Kyrgyzstan 2018: Women age 15-49
  • Laos 2011: Women age 15-49
  • Laos 2017: Women age 15-49
  • Lebanon 2011: Women age 15-49 currently married or in a union
  • Lesotho 2018: Women age 15-49
  • Macedonia 2011: Women age 15-49
  • Macedonia (Roma) 2011: Women age 15-49
  • Macedonia 2018: Women age 15-49
  • Macedonia (Roma) 2018: Women age 15-49
  • Madagascar 2012: Women age 15-49
  • Madagascar 2018: Women age 15-49
  • Malawi 2013: Women age 15-49
  • Malawi 2019: Women age 15-49
  • Mali 2009: Women age 15-49
  • Mali 2015: Women age 15-49
  • Mauritania 2011: Women age 15-49 currently married or in a union
  • Mauritania 2015: Women age 15-49
  • Mexico 2015: Women age 15-49
  • Moldova 2012: Women age 15-49
  • Mongolia (Khuvsgul Aimag) 2012: Women age 15-49
  • Mongolia (Nalaikh) 2012: Women age 15-49
  • Mongolia 2013: Women age 15-49
  • Mongolia (Khuvsgul Aimag) 2016: Women age 15-49
  • Mongolia (Nalaikh) 2016: Women age 15-49
  • Mongolia 2018: Women age 15-49
  • Montenegro (Roma) 2013: Women age 15-49
  • Montenegro 2013: Women age 15-49
  • Montenegro 2018: Women age 15-49
  • Montenegro (Roma) 2018: Women age 15-49
  • Nepal 2010: Women age 15-49
  • Nepal 2014: Women age 15-49
  • Nepal 2019: Ever-married women age 15-49
  • Nigeria 2011: Women age 15-49
  • Nigeria 2016: Women age 15-49
  • Nigeria 2021: Women age 15-49
  • Pakistan (Punjab) 2011: Women age 15-49 currently married or in a union
  • Pakistan (Sindh) 2014: Women age 15-49 currently married or in a union
  • Pakistan (Punjab) 2014: Women age 15-49 currently married or in a union
  • Pakistan (Gilgit-Baltistan) 2016: Women age 15-49 currently married or in a union
  • Pakistan (Khyber Pakhtunkhwa) 2016: Women age 15-49 currently married or in a union
  • Pakistan (Punjab) 2017: Women age 15-49 currently married or in a union
  • Pakistan (Sindh) 2018: Women age 15-49 currently married or in a union
  • Pakistan (Balochistan) 2019: Women age 15-49
  • Pakistan (Khyber Pakhtunkhwa) 2019: Women age 15-49
  • Palestine 2010: Women age 15-54 currently married or in a union
  • Palestine 2014: Women age 15-49 currently married or in a union
  • Palestine 2019: Women age 15-49 currently married or in a union
  • Panama 2013: Women age 15-49
  • Paraguay 2016: Women age 15-49
  • Saint Lucia 2012: Women age 15-49
  • Samoa 2019: Women age 15-49
  • Sao Tome and Principe 2014: Women age 15-49
  • Sao Tome and Principe 2019: Women age 15-49
  • Senegal (Dakar City) 2015: Women age 15-49
  • Serbia 2010: Women age 15-49
  • Serbia (Roma) 2010: Women age 15-49
  • Serbia 2014: Women age 15-49
  • Serbia (Roma) 2014: Women age 15-49
  • Serbia (Roma) 2019: Women age 15-49
  • Serbia 2019: Women age 15-49
  • Sierra Leone 2010: Women age 15-49
  • Sierra Leone 2017: Women age 15-49
  • Somalia (Somaliland) 2011: Women age 15-49 currently married or in a union
  • Somalia (Northeast Zone) 2011: Women age 15-49 currently married or in a union
  • South Sudan 2010: Women age 15-49 currently married or in a union
  • Sudan 2010: Women age 15-49 currently married or in a union
  • Sudan 2014: Women age 15-49 currently married or in a union
  • Suriname 2010: Women age 15-49
  • Suriname 2018: Women age 15-49
  • Thailand 2012: Women age 15-49
  • Thailand (Bangkok) 2015: Women age 15-49
  • Thailand 2015: Women age 15-49
  • Thailand (14 Provinces) 2016: Women age 15-49
  • Thailand (17 Provinces) 2019: Women age 15-49
  • Thailand 2019: Women age 15-49
  • Thailand 2022: Women age 15-49
  • Togo 2010: Women age 15-49
  • Togo 2017: Women age 15-49
  • Tonga 2019: Women age 15-49
  • Trinidad and Tobago 2011: Women age 15-49
  • Trinidad and Tobago 2022: Women age 15-49
  • Tunisia 2011: Women age 15-49 currently married or in a union
  • Tunisia 2018: Ever-married women age 15-49
  • Tunisia 2023: Women age 15-49
  • Turkmenistan 2015: Ever-married women age 15-49
  • Turkmenistan 2019: Ever-married women age 15-49
  • Turks and Caicos 2019: Women age 15-49
  • Tuvalu 2019: Women age 15-49
  • Ukraine 2012: Women age 15-49
  • Uzbekistan 2021: Women age 15-49 in phase 2 of data collection
  • Vietnam 2010: Women age 15-49
  • Vietnam 2013: Women age 15-49
  • Vietnam 2020: Women age 15-49
  • Zimbabwe 2014: Women age 15-49
  • Zimbabwe 2019: Women age 15-49

Availability

  • Afghanistan: 2022
  • Algeria: 2012, 2018
  • Argentina: 2019
  • Bangladesh: 2012, 2019
  • Barbados: 2012
  • Belarus: 2012, 2019
  • Belize: 2011, 2015
  • Benin: 2014, 2021
  • Bhutan: 2010
  • Bosnia and Herzegovina: 2011
  • Bosnia and Herzegovina (Roma): 2011
  • Cameroon: 2014
  • Central African Republic: 2010, 2018
  • Chad: 2010, 2019
  • Comoros: 2022
  • Congo: 2014
  • Congo Democratic Republic: 2010, 2017
  • Costa Rica: 2011, 2018
  • Cote D'Ivoire: 2016
  • Cuba: 2010, 2014, 2019
  • Dominican Republic: 2014, 2019
  • El Salvador: 2014
  • Eswatini (Swaziland): 2010, 2014, 2021
  • Fiji: 2021
  • Gambia: 2010, 2018
  • Georgia: 2018
  • Ghana: 2011, 2017
  • Ghana (Accra): 2010
  • Guinea: 2016
  • Guinea Bissau: 2014, 2018
  • Guyana: 2014, 2019
  • Honduras: 2019
  • Indonesia (Papua): 2011
  • Indonesia (West Papua): 2011
  • Iraq: 2011, 2018
  • Kazakhstan: 2010, 2015
  • Kenya (Bungoma): 2013
  • Kenya (Kakamega): 2013
  • Kenya (Turkana County): 2013
  • Kiribati: 2018
  • Kosovo: 2013, 2019
  • Kosovo (Roma): 2013, 2019
  • Kyrgyzstan: 2014, 2018
  • Laos: 2011, 2017
  • Lebanon: 2011
  • Lesotho: 2018
  • Macedonia: 2011, 2018
  • Macedonia (Roma): 2011, 2018
  • Madagascar: 2012, 2018
  • Malawi: 2013, 2019
  • Mali: 2009, 2015
  • Mauritania: 2011, 2015
  • Mexico: 2015
  • Moldova: 2012
  • Mongolia: 2013, 2018
  • Mongolia (Khuvsgul Aimag): 2012, 2016
  • Mongolia (Nalaikh): 2012, 2016
  • Montenegro: 2013, 2018
  • Montenegro (Roma): 2013, 2018
  • Nepal: 2010, 2014, 2019
  • Nigeria: 2011, 2016, 2021
  • Pakistan (Punjab): 2011, 2014, 2017
  • Pakistan (Sindh): 2014, 2018
  • Pakistan (Gilgit-Baltistan): 2016
  • Pakistan (Khyber Pakhtunkhwa): 2016, 2019
  • Pakistan (Balochistan): 2019
  • Palestine: 2010, 2014, 2019
  • Panama: 2013
  • Paraguay: 2016
  • Saint Lucia: 2012
  • Samoa: 2019
  • Sao Tome and Principe: 2014, 2019
  • Senegal (Dakar City): 2015
  • Serbia: 2010, 2014, 2019
  • Serbia (Roma): 2010, 2014, 2019
  • Sierra Leone: 2010, 2017
  • Somalia (Northeast Zone): 2011
  • Somalia (Somaliland): 2011
  • South Sudan: 2010
  • Sudan: 2010, 2014
  • Suriname: 2010, 2018
  • Thailand: 2012, 2015, 2019, 2022
  • Thailand (Bangkok): 2015
  • Thailand (14 Provinces): 2016
  • Thailand (17 Provinces): 2019
  • Togo: 2010, 2017
  • Tonga: 2019
  • Trinidad and Tobago: 2011, 2022
  • Tunisia: 2011, 2018, 2023
  • Turkmenistan: 2015, 2019
  • Turks and Caicos: 2019
  • Tuvalu: 2019
  • Ukraine: 2012
  • Uzbekistan: 2021
  • Vietnam: 2010, 2013, 2020
  • Zimbabwe: 2014, 2019