Data Dictionary: Census 2000
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Survey: Census 2000
Data Source: U.S. Census Bureau
Table: PCT12F. Sex By Age (Some Other Race Alone) [209]
Universe: People who are Some other race alone
Table Details
PCT12F. Sex By Age (Some Other Race Alone)
Universe: People who are Some other race alone
Variable Label
PCT012F001
PCT012F002
PCT012F003
PCT012F004
PCT012F005
PCT012F006
PCT012F007
PCT012F008
PCT012F009
PCT012F010
PCT012F011
PCT012F012
PCT012F013
PCT012F014
PCT012F015
PCT012F016
PCT012F017
PCT012F018
PCT012F019
PCT012F020
PCT012F021
PCT012F022
PCT012F023
PCT012F024
PCT012F025
PCT012F026
PCT012F027
PCT012F028
PCT012F029
PCT012F030
PCT012F031
PCT012F032
PCT012F033
PCT012F034
PCT012F035
PCT012F036
PCT012F037
PCT012F038
PCT012F039
PCT012F040
PCT012F041
PCT012F042
PCT012F043
PCT012F044
PCT012F045
PCT012F046
PCT012F047
PCT012F048
PCT012F049
PCT012F050
PCT012F051
PCT012F052
PCT012F053
PCT012F054
PCT012F055
PCT012F056
PCT012F057
PCT012F058
PCT012F059
PCT012F060
PCT012F061
PCT012F062
PCT012F063
PCT012F064
PCT012F065
PCT012F066
PCT012F067
PCT012F068
PCT012F069
PCT012F070
PCT012F071
PCT012F072
PCT012F073
PCT012F074
PCT012F075
PCT012F076
PCT012F077
PCT012F078
PCT012F079
PCT012F080
PCT012F081
PCT012F082
PCT012F083
PCT012F084
PCT012F085
PCT012F086
PCT012F087
PCT012F088
PCT012F089
PCT012F090
PCT012F091
PCT012F092
PCT012F093
PCT012F094
PCT012F095
PCT012F096
PCT012F097
PCT012F098
PCT012F099
PCT012F100
PCT012F101
PCT012F102
PCT012F103
PCT012F104
PCT012F105
PCT012F106
PCT012F107
PCT012F108
PCT012F109
PCT012F110
PCT012F111
PCT012F112
PCT012F113
PCT012F114
PCT012F115
PCT012F116
PCT012F117
PCT012F118
PCT012F119
PCT012F120
PCT012F121
PCT012F122
PCT012F123
PCT012F124
PCT012F125
PCT012F126
PCT012F127
PCT012F128
PCT012F129
PCT012F130
PCT012F131
PCT012F132
PCT012F133
PCT012F134
PCT012F135
PCT012F136
PCT012F137
PCT012F138
PCT012F139
PCT012F140
PCT012F141
PCT012F142
PCT012F143
PCT012F144
PCT012F145
PCT012F146
PCT012F147
PCT012F148
PCT012F149
PCT012F150
PCT012F151
PCT012F152
PCT012F153
PCT012F154
PCT012F155
PCT012F156
PCT012F157
PCT012F158
PCT012F159
PCT012F160
PCT012F161
PCT012F162
PCT012F163
PCT012F164
PCT012F165
PCT012F166
PCT012F167
PCT012F168
PCT012F169
PCT012F170
PCT012F171
PCT012F172
PCT012F173
PCT012F174
PCT012F175
PCT012F176
PCT012F177
PCT012F178
PCT012F179
PCT012F180
PCT012F181
PCT012F182
PCT012F183
PCT012F184
PCT012F185
PCT012F186
PCT012F187
PCT012F188
PCT012F189
PCT012F190
PCT012F191
PCT012F192
PCT012F193
PCT012F194
PCT012F195
PCT012F196
PCT012F197
PCT012F198
PCT012F199
PCT012F200
PCT012F201
PCT012F202
PCT012F203
PCT012F204
PCT012F205
PCT012F206
PCT012F207
PCT012F208
PCT012F209
Relevant Documentation:
Excerpt from: Social Explorer, U.S. Census Bureau; 2000 Census of Population and Housing, Summary File 1: Technical Documentation, 2001.
 
Sex
The data on sex were derived from answers to a question that was asked of all people. Individuals were asked to mark either "male" or "female" to indicate their sex. For most cases in which sex was not reported, it was determined by the appropriate entry from the persons given (i.e., first) name and household relationship. Otherwise, sex was imputed according to the relationship to the householder and the age of the person. (For more information on imputation, see "Accuracy of the Data.")

Sex ratio
A measure derived by dividing the total number of males by the total number of females and multiplying by 100.

Comparability
A question on the sex of individuals has been asked of the total population in every census.
For more information on sex, please telephone 301-457-2378.

Excerpt from: Social Explorer, U.S. Census Bureau; 2000 Census of Population and Housing, Summary File 1: Technical Documentation, 2001.
 
Age
The data on age were derived from answers to a question that was asked of all people. The age classification is based on the age of the person in complete years as of April 1, 2000. The age of the person was usually derived from their date of birth information. Their reported age was used only when date of birth information was unavailable.

Data on age are used to determine the applicability of some of the sample questions for a person and to classify other characteristics in census tabulations. Age data are needed to interpret most social and economic characteristics used to plan and examine many programs and policies.

Median age
This measure divides the age distribution into two equal parts: one-half of the cases falling below the median value and one-half above the value. Median age is computed on the basis of a single year of age distribution.

Limitation of the data
The most general limitation for many decades has been the tendency of people to overreport ages or years of birth that end in zero or five. This phenomenon is called "age heaping." In addition, the counts in the 1970 and 1980 censuses for people 100 years old and over were substantially overstated. So also were the counts of people aged 69 in 1970 and aged 79 in 1980. Improvements have been made since then in the questionnaire design, and in the allocation procedures which have further minimized these problems. The count of people aged 89 in the 1990 census was not overstated.

Review of detailed 1990 census information indicated that respondents tended to provide their age as of the date they completed the questionnaire, not their age as of April 1, 1990. One reason this happened was that respondents were not specifically instructed to provide their age as of April 1, 1990. Another reason was that data collection efforts continued well past the census date. In addition, there may have been a tendency for respondents to round their age up if they were close to having a birthday. It is likely that approximately 10 percent of people in most age groups were actually one year younger. For most single years of age, the misstatements were largely offsetting. The problem is most pronounced at age zero because people lost to age one probably were not fully offset by the inclusion of babies born after April 1, 1990. Also, there may have been more rounding up to age one to avoid reporting age as zero years. (Age in complete months was not collected for infants under age one.)

The reporting of age one year older than true age on April 1, 1990, is likely to have been greater in areas where the census data were collected later in calendar year 1990. The magnitude of this problem was much less in the 1960, 1970, and 1980 censuses where age was typically derived from respondent data on year of birth and quarter of birth.

These shortcomings were minimized in Census 2000 because age was usually calculated from exact date of birth and because respondents were specifically asked to provide their age as of April 1, 2000. (For more information on the design of the age question, see the section below that discusses "Comparability.")

Comparability
Age data have been collected in every census. For the first time since 1950, the 1990 data were not available by quarter year of age. This change was made so that coded information could be obtained for both age and year of birth. In 2000, each individual has both an age and an exact date of birth. In each census since 1940, the age of a person was assigned when it was not reported. In censuses before 1940, with the exception of 1880, people of unknown age were shown as a separate category. Since 1960, assignment of unknown age has been performed by a general procedure described as "imputation." The specific procedures for imputing age have been different in each census. (For more information on imputation, see "Accuracy of the Data.")
For more information on age, please telephone 301-457-2428.

Excerpt from: Social Explorer, U.S. Census Bureau; 2000 Census of Population and Housing, Summary File 1: Technical Documentation, 2001.
 
Some other race
Includes all other responses not included in the "White," "Black or African American," "American Indian or Alaska Native," "Asian," and "Native Hawaiian or Other Pacific Islander" race categories described above. Respondents providing write-in entries such as multiracial, mixed, interracial, or a Hispanic/Latino group (for example, Mexican, Puerto Rican, or Cuban) in the "Some other race" write-in space are included in this category.