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    Home / Central Data Catalog / VNM_1999_PHC_V01_M_V03_A_IPUMS / variable [F2]
central

Population and Housing Census 1999 - IPUMS Subset

Vietnam, 1999
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Reference ID
VNM_1999_PHC_v01_M_v03_A_IPUMS
Producer(s)
Bureau of The Central Steering Committee for the 1999 Population and Housing Census. General Statistics Office., Minnesota Population Center
Metadata
DDI/XML JSON
Study website
Created on
Sep 29, 2011
Last modified
Mar 29, 2019
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  • VNM1999-H-H
  • VNM1999-P-H

Year of birth (VN1999A_0405)

Data file: VNM1999-P-H

Overview

Valid: 0
Invalid: 0
Type: Discrete
Decimal: 0
Start: 169
End: 171
Width: 3
Range: -
Format:

Questions and instructions

Literal question
4. In what solar calendar month and year was (Name) born? ________

Month _ _

Year 1_ _ _
Categories
Value Category
894 1894 or earlier
895 1895
896 1896
897 1897
898 1898
899 1899
900 1900
901 1901
902 1902
903 1903
904 1904
905 1905
906 1906
907 1907
908 1908
909 1909
910 1910
911 1911
912 1912
913 1913
914 1914
915 1915
916 1916
917 1917
918 1918
919 1919
920 1920
921 1921
922 1922
923 1923
924 1924
925 1925
926 1926
927 1927
928 1928
929 1929
930 1930
931 1931
932 1932
933 1933
934 1934
935 1935
936 1936
937 1937
938 1938
939 1939
940 1940
941 1941
942 1942
943 1943
944 1944
945 1945
946 1946
947 1947
948 1948
949 1949
950 1950
951 1951
952 1952
953 1953
954 1954
955 1955
956 1956
957 1957
958 1958
959 1959
960 1960
961 1961
962 1962
963 1963
964 1964
965 1965
966 1966
967 1967
968 1968
969 1969
970 1970
971 1971
972 1972
973 1973
974 1974
975 1975
976 1976
977 1977
978 1978
979 1979
980 1980
981 1981
982 1982
983 1983
984 1984
985 1985
986 1986
987 1987
988 1988
989 1989
990 1990
991 1991
992 1992
993 1993
994 1994
995 1995
996 1996
997 1997
998 1998
999 1999
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.
Interviewer instructions
Question 4: In what solar calendar month and year was (name) born?

Interviewers need to ask respondent and fill in his/her actual month and year of birth by solar calendar. Interviewers fill in month of birth in two cells in the line for "month". If the month of birth is less than 10, interviewers place "0" in the cell on the left. Filling in the last 3 digits of year of birth in the 3 cells for the line "year".

Note: For persons who were born before April 1899 (100 years old and older), interviewers should also report their information on "List of elderly aged 100 years and older" (appendix 5) after filling in their month and year of birth.

In fact, it is difficult to have correct information on month and year of birth in solar calendar for many people, especially for elderly. Therefore, interviewers should pay attention to several points:

a) Respondent only remembers his/her month, year of birth or age by lunar calendar:


When respondent answer month of birth, interviewers should reconfirm if it is by solar calendar or lunar calendar. If respondent use lunar calendar, interviewers should add 1 unit to have correct solar calendar month of birth (usually, lunar calendar is one month behind solar calendar).

If respondent only remembers year of birth by lunar calendar, interviewers should use "Lunar calendar and solar calendar conversion table" (appendix 2) to convert lunar calendar year into solar calendar year.

In cases where respondent only remembers "zodiac" (chi) (such as: rat, buffalo, tiger, cat, etc.) of his/her year of birth by lunar calendar and can't remember stem/branch (can) (such as: Giap, At, Binh, Dinh, etc.) of that lunar calendar year, interviewers need to ask respondent's age and use "Lunar calendar and solar calendar conversion table" to define year of birth in solar calendar for that person.

In a case, respondent only remember his/her age using lunar calendar, interviewers estimate his/her year of birth in solar calendar, as follow:

Year of enumeration (1999) - age in lunar calendar + 1 = Year of birth in solar calendar


b) Respondent doesn't remember month, year of birth by either lunar calendar or solar calendar


Respondent doesn't remember month of birth: Interviewers need to ask several questions in order to approximate month of birth in solar calendar. If respondent is still not able to report month of birth, interviewers fill in code (**) (not available) in the cells for month of birth.

Respondent doesn't remember year of birth and age: Interviewers can ask several questions to define respondent's age. If respondent is still not able to report his/her age, interviewers may estimate respondent's age (based on his/her appearance, age of the first child, age of brother/sister, etc.), then year of birth in solar calendar. Interviewers shouldn't fill in code "not available" or leave year of birth blank.

Description

Definition
This variable indicates the year of birth of the person.
Universe
All persons

concept

Concept
Name Vocabulary
Demographic Variables -- PERSON IPUMS
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