BINT4YR_ALL (B14_x) variables are 1-digit variables.
0 = No
1 = Yes
8 = Don't know
9 = NIU (not in universe)
Description
BINT4YR_ALL (B14_x) indicates whether the preceding birth interval, or the length of time in months the child was born after the mother's previous birth (i.e., after the child's next oldest sibling), was four or more years. The survey form included the question, "Were there any other live births between (NAME OF PREVIOUS BIRTH) and (NAME), including any children who died?" and left room to record the month and year of each birth.
Because BINT4YR_ALL relates to time since the birth of the child's older sibling, first-born children are not included in this variable set.
The DHS Recode Manual for Phase III describes how the calculation of the birth interval reported in this variable was done:
The DHS Recode Manuals for Phases III and IV add the following note explaining the rationale for BINT4YR (B14):
The related variables BIRTHINTPREMO_ALL (B11_x) and BIRTHINTPOSTMO_ALL (B12_x) report the finalized numbers, in months, for the length of the birth intervals preceding and following a birth, respectively.
BINT4YR_ALL consists of a set of twenty separate variables, covering the most recent birth (BINT4YR_01) up to the twentieth-most-recent birth (BINT4YR_20) for a female respondent of childbearing age. If BINT4YR_ALL is included in a data extract, all these separate variables are included in a researcher's data file.
Information for this variable was collected on all births for a woman, up to a maximum of twenty. In many cases, data were hypothetically collected on up to twenty births, but no women in the survey had so many births (e.g., no woman had 19 or 20 births). If, for example, no woman in a survey had 20 births and only blank values were included in the original DHS file, then BINT4YR_20 would not be available for that survey in IPUMS-DHS.
Comparability — Index
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GENERAL |
Nigeria |
Comparability
Apart from universe differences, BINT4YR_ALL (B14_x) is largely comparable across samples.
Comparability - Standard DHS
BINT4YR_ALL (B14_x) is included in Phase III of the standard DHS questionnaire.
Comparability — Nigeria [top]
The 1999 Nigerian survey identified births with a previous birth interval of more than two years, while most DHS Phase 2 surveys identified births with a previous birth interval of more than four years.
Universe
- Bangladesh 1997: Ever-married women age 10-49 whose last-born child was not their first birth.
- Benin 1996: Women age 15-49 whose last-born child was not their first birth.
- Burkina Faso 1998: Women age 15-49 whose last-born child was not their first birth.
- Cameroon 1998: Women age 15-49 whose last-born child was not their first birth.
- Central African Republic 1995: Women age 15-49 whose last-born child was not their first birth.
- Chad 1996: Women age 15-49 whose last-born child was not their first birth.
- Comoros 1996: Women age 15-49 whose last-born child was not their first birth.
- Cote d'Ivoire 1994: Women age 15-49 whose last-born child was not their first birth.
- Cote d'Ivoire 1998: Women age 15-49 whose last-born child was not their first birth.
- Egypt 1995: Ever-married women age 15-49 whose last-born child was not their first birth.
- Ghana 1998: Women age 15-49 whose last-born child was not their first birth.
- Guinea 1999: Women age 15-49 whose last-born child was not their first birth.
- Jordan 1997: Ever-married women age 15-49 whose last-born child was not their first birth.
- Kenya 1998: Women age 15-49 whose last-born child was not their first birth.
- Madagascar 1997: Women age 15-49 whose last-born child was not their first birth.
- Mali 1995: Women age 15-49 whose last-born child was not their first birth.
- Mozambique 1997: Women age 15-49 whose last-born child was not their first birth.
- Nepal 1996: Ever-married women age 15-49 whose last-born child was not their first birth.
- Niger 1998: Women age 15-49 whose last-born child was not their first birth.
- Nigeria 1999: Women age 10-49 whose last-born child was not their first birth.
- South Africa 1998: Women age 15-49 whose last-born child was not their first birth.
- Tanzania 1996: Women age 15-49 whose last-born child was not their first birth.
- Togo 1998: Women age 15-49 whose last-born child was not their first birth.
- Uganda 1995: Women age 15-49 whose last-born child was not their first birth.
- Zambia 1996: Women age 15-49 whose last-born child was not their first birth.
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