- Description
- Codes
- Comparability
- Universe
- Availability
- Questionnaire Text
- Flags
- Source Variables
- Editing Procedure
Description
BIRTHMO reports the person's month of birth.
Codes and Frequencies
An 'X' indicates the category is available for that sample
Code | Label |
1950
1pct
|
1910
1pct
|
1900
1pct
|
1880
1pct
|
1870
1pct
|
---|---|---|---|---|---|---|
00 | N/A | X | X | · | X | X |
01 | January | X | X | X | X | X |
02 | February | X | X | X | X | X |
03 | March | X | X | X | X | X |
04 | April | X | X | X | X | X |
05 | May | X | X | X | X | X |
06 | June | X | X | X | X | X |
07 | July | X | X | X | X | X |
08 | August | X | X | X | X | X |
09 | September | X | X | X | X | X |
10 | October | X | X | X | X | X |
11 | November | X | X | X | X | X |
12 | December | X | X | X | X | X |
99 | Missing | X | · | · | · | · |
Can't find the category you are looking for? Try the Detailed codes
Comparability
This variable means the same thing in all years, but it is available only for persons under age 1 in 1870, 1880, and 1950, and for all persons in 1900. The frequency of cases for June and July is markedly understated in the 1870 and 1880 samples. In these years, enumeration began on June 1, and the age of persons born close to that date was frequently rounded up to 1 year.
BIRTHMO can be used to create information for 1950 similar to that yielded for 1850-1940 in AGEMONTH (Age in months).
Universe
- 1870-1880: Persons under age 1. Not available in the 1880 100% database,
- 1900: All persons.
- 1910: All persons in Alaska.
- 1950: Persons under age 1.
Availability
- 2023: --
- 2022: --
- 2021: --
- 2020: --
- 2019: --
- 2018: --
- 2017: --
- 2016: --
- 2015: --
- 2014: --
- 2013: --
- 2012: --
- 2011: --
- 2010: --
- 2009: --
- 2008: --
- 2007: --
- 2006: --
- 2005: --
- 2004: --
- 2003: --
- 2002: --
- 2001: --
- 2000: --
- 1990: --
- 1980: --
- 1970: --
- 1960: --
- 1950: All samples
- 1940: --
- 1930: --
- 1920: --
- 1910: 1%; 1.4% ovrsmp
- 1900: All samples
- 1880: All samples
- 1870: All samples
- 1860: --
- 1850: --
- 2023: --
- 2022: --
- 2021: --
- 2020: --
- 2019: --
- 2018: --
- 2017: --
- 2016: --
- 2015: --
- 2014: --
- 2013: --
- 2012: --
- 2011: --
- 2010: --
- 2009: --
- 2008: --
- 2007: --
- 2006: --
- 2005: --
- 2000: --
- 1990: --
- 1980: --
- 1970: --
- 1930: --
- 1920: --
- 1910: --
Questionnaire Text
1950 1% |
1910 1% |
1900 1% |
1880 1% |
1870 1% |
122. Item l l. Age at last birthday.-Enter the age of the person at his last birthday as of the date of your call. For persons 1 year old and over, this question calls for the age in completed years at last birthday.
123. Ages of infants.-The entry for children less than a year old should indicate the month of birth. For example, the entry for a child born in March, 1950, should be "March." It is permissible to abbreviate where necessary in entering the name of the month, for example "Dec." for December.
Flags
QBIRTHMOEditing Procedure
There is no editing procedure available for this variable.