Variable WB1Y : Year of birth of woman

Overview

Type: Discrete
Format: numeric
Width: 4
Decimal(s): 0
Range: 1959-9999

Valid case(s): 2081
Invalid: 81
Minimum: 1964
Maximum: 9998

Universe

Women with a completed interview (WM7=1)

Source of information

Respondent

Categories

Value	Category	Cases
1964		37	1.8%
1965		30	1.4%
1966		34	1.6%
1967		43	2.1%
1968		38	1.8%
1969		46	2.2%
1970		49	2.4%
1971		38	1.8%
1972		48	2.3%
1973		41	2.0%
1974		45	2.2%
1975		45	2.2%
1976		48	2.3%
1977		38	1.8%
1978		47	2.3%
1979		52	2.5%
1980		45	2.2%
1981		50	2.4%
1982		72	3.5%
1983		61	2.9%
1984		60	2.9%
1985		72	3.5%
1986		64	3.1%
1987		68	3.3%
1988		78	3.7%
1989		75	3.6%
1990		79	3.8%
1991		97	4.7%
1992		108	5.2%
1993		76	3.7%
1994		81	3.9%
1995		84	4.0%
1996		88	4.2%
1997		59	2.8%
1998		58	2.8%
1999		25	1.2%
9997	Inconsistent	0	0.0%
9998	DK	2	0.1%
Sysmiss		81

Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.

Literal question

In what month and year were you born?

Interviewer instructions

Age and date of birth: Age (WB1 and WB2) is one of the most important information in the interview, since almost all analysis of the data depends on the respondent's age. These questions must be asked independently of the information on the Household Questionnaire. Even if you already asked the respondent her age when you were completing the Household Questionnaire, you must ask again for her date of birth and age on the Questionnaire for Individual Women. 

If the respondent knows her date of birth, write it in the appropriate spaces for 'Month' and 'Year'. You will need to convert the month into numbers. For this, January is '01', February is '02', March is '03', etc. If the month or day contains only one digit, use a leading zero to fill in the first space. For example, the month of March is coded as '03'. If she does not know her month of birth, circle '98' for 'DK month' and ask her for the year of her birth. If she knows the year, write it in the spaces for 'Year'. Try under all circumstances to obtain at least the year of birth. If the respondent is unable to provide this information, ask whether she has any documentation such as an identification card, horoscope, or a birth or baptismal certificate that might give her date of birth. If such documentation is available, ask the woman if the information on the document(s) is correct. Only when it is absolutely impossible to even estimate the year of birth should you circle '9998' for 'DK year'.