Data Dictionary: Census 2000
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Survey: Census 2000
Data Source: U.S. Census Bureau
Table: PCT12M. Sex By Age (NHPI Alone, Not Hispanic Or Latino) [209]
Universe: People who are Native Hawaiian and Other Pacific Islander alone, not Hispanic or Latino
Table Details
PCT12M. Sex By Age (NHPI Alone, Not Hispanic Or Latino)
Universe: People who are Native Hawaiian and Other Pacific Islander alone, not Hispanic or Latino
Variable Label
PCT012M001
PCT012M002
PCT012M003
PCT012M004
PCT012M005
PCT012M006
PCT012M007
PCT012M008
PCT012M009
PCT012M010
PCT012M011
PCT012M012
PCT012M013
PCT012M014
PCT012M015
PCT012M016
PCT012M017
PCT012M018
PCT012M019
PCT012M020
PCT012M021
PCT012M022
PCT012M023
PCT012M024
PCT012M025
PCT012M026
PCT012M027
PCT012M028
PCT012M029
PCT012M030
PCT012M031
PCT012M032
PCT012M033
PCT012M034
PCT012M035
PCT012M036
PCT012M037
PCT012M038
PCT012M039
PCT012M040
PCT012M041
PCT012M042
PCT012M043
PCT012M044
PCT012M045
PCT012M046
PCT012M047
PCT012M048
PCT012M049
PCT012M050
PCT012M051
PCT012M052
PCT012M053
PCT012M054
PCT012M055
PCT012M056
PCT012M057
PCT012M058
PCT012M059
PCT012M060
PCT012M061
PCT012M062
PCT012M063
PCT012M064
PCT012M065
PCT012M066
PCT012M067
PCT012M068
PCT012M069
PCT012M070
PCT012M071
PCT012M072
PCT012M073
PCT012M074
PCT012M075
PCT012M076
PCT012M077
PCT012M078
PCT012M079
PCT012M080
PCT012M081
PCT012M082
PCT012M083
PCT012M084
PCT012M085
PCT012M086
PCT012M087
PCT012M088
PCT012M089
PCT012M090
PCT012M091
PCT012M092
PCT012M093
PCT012M094
PCT012M095
PCT012M096
PCT012M097
PCT012M098
PCT012M099
PCT012M100
PCT012M101
PCT012M102
PCT012M103
PCT012M104
PCT012M105
PCT012M106
PCT012M107
PCT012M108
PCT012M109
PCT012M110
PCT012M111
PCT012M112
PCT012M113
PCT012M114
PCT012M115
PCT012M116
PCT012M117
PCT012M118
PCT012M119
PCT012M120
PCT012M121
PCT012M122
PCT012M123
PCT012M124
PCT012M125
PCT012M126
PCT012M127
PCT012M128
PCT012M129
PCT012M130
PCT012M131
PCT012M132
PCT012M133
PCT012M134
PCT012M135
PCT012M136
PCT012M137
PCT012M138
PCT012M139
PCT012M140
PCT012M141
PCT012M142
PCT012M143
PCT012M144
PCT012M145
PCT012M146
PCT012M147
PCT012M148
PCT012M149
PCT012M150
PCT012M151
PCT012M152
PCT012M153
PCT012M154
PCT012M155
PCT012M156
PCT012M157
PCT012M158
PCT012M159
PCT012M160
PCT012M161
PCT012M162
PCT012M163
PCT012M164
PCT012M165
PCT012M166
PCT012M167
PCT012M168
PCT012M169
PCT012M170
PCT012M171
PCT012M172
PCT012M173
PCT012M174
PCT012M175
PCT012M176
PCT012M177
PCT012M178
PCT012M179
PCT012M180
PCT012M181
PCT012M182
PCT012M183
PCT012M184
PCT012M185
PCT012M186
PCT012M187
PCT012M188
PCT012M189
PCT012M190
PCT012M191
PCT012M192
PCT012M193
PCT012M194
PCT012M195
PCT012M196
PCT012M197
PCT012M198
PCT012M199
PCT012M200
PCT012M201
PCT012M202
PCT012M203
PCT012M204
PCT012M205
PCT012M206
PCT012M207
PCT012M208
PCT012M209
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.
 
Native Hawaiian or Other Pacific Islander
A person having origins in any of the original peoples of Hawaii, Guam, Samoa, or other Pacific Islands. It includes people who indicate their race as "Native Hawaiian," "Guamanian or Chamorro," "Samoan," and "Other Pacific Islander."

Native Hawaiian
Includes people who indicate their race as "Native Hawaiian" or who identify themselves as "Part Hawaiian" or "Hawaiian."

Guamanian or Chamorro
Includes people who indicate their race as such, including written entries of Chamorro or Guam.

Samoan
Includes people who indicate their race as "Samoan" or who identify themselves as American Samoan or Western Samoan.

Other Pacific Islander
Includes people who provide a write-in response of a Pacific Islander group, such as Carolinian, Chuukese (Trukese), Fijian, Kosraean, Melanesian, Micronesian, Northern Mariana Islander, Palauan, Papua New Guinean, Pohnpeian, Polynesian, Solomon Islander, Tahitian, Tokelauan, Tongan, Yapese, or Pacific Islander, not specified.

Excerpt from: Social Explorer, U.S. Census Bureau; 2000 Census of Population and Housing, Summary File 1: Technical Documentation, 2001.
 
Hispanic or Latino
The data on the Hispanic or Latino population were derived from answers to a question that was asked of all people. The terms "Spanish,""Hispanic origin," and "Latino" are used interchangeably. Some respondents identify with all three terms while others may identify with only one of these three specific terms. Hispanics or Latinos who identify with the terms "Spanish,"" Hispanic," or "Latino" are those who classify themselves in one of the specific Spanish, Hispanic, or Latino categories listed on the questionnaire ("Mexican,""Puerto Rican," or "Cuban") as well as those who indicate that they are "other Spanish/Hispanic/Latino." People who do not identify with one of the specific origins listed on the questionnaire but indicate that they are "other Spanish, Hispanic, or Latino" are those whose origins are from Spain, the Spanish-speaking countries of Central or South America, the Dominican Republic, or people identifying themselves generally as Spanish, Spanish-American, Hispanic, Hispano, Latino, and so on. All write-in responses to the "other Spanish/Hispanic/Latino" category were coded.

Origin can be viewed as the heritage, nationality group, lineage, or country of birth of the person or the persons parents or ancestors before their arrival in the United States. People who identify their origin as Spanish, Hispanic, or Latino may be of any race. Some tabulations are shown by the origin of the householder. In all cases where the origin of households, families, or occupied housing units is classified as Spanish, Hispanic, or Latino, the origin of the householder is used. (See the discussion of householder under "Household Type and Relationship.")

If an individual could not provide a Hispanic origin response, their origin was assigned using specific rules of precedence of household relationship. For example, if origin was missing for a natural-born daughter in the household, then either the origin of the householder, another naturalborn child, or spouse of the householder was assigned. If Hispanic origin was not reported for anyone in the household, the Hispanic origin of a householder in a previously processed household with the same race was assigned. This procedure is a variation of the general imputation procedures described in "Accuracy of the Data" and is similar to those used in 1990, except for Census 2000 race and Spanish surnames were used to assist in assigning an origin (see the "Comparability" section below also).

Comparability
There are two important changes to the Hispanic origin question for Census 2000. First, the sequence of the race and Hispanic origin questions for Census 2000 differs from that in 1990; in 1990, the race question preceded the Hispanic origin question. Testing prior to Census 2000 indicated that response to the Hispanic origin question could be improved by placing it before the race question without affecting the response to the race question. Second, there is an instruction preceding the Hispanic origin question indicating that respondents should answer both the Hispanic origin and the race questions. This instruction was added to give emphasis to the distinct concepts of the Hispanic origin and race questions, and to emphasize the need for both pieces of information.

Furthermore, there has been a change in the processing of the Hispanic origin and race responses. In the 1990 census, respondents provided Hispanic origin responses in the race question and race responses in the Hispanic origin question. In 1990, the Hispanic origin question and the race question had separate edits; therefore, although information may have been present on the questionnaire, it was not fully utilized due to the discrete nature of the edits. However, for Census 2000 there is a joint race and Hispanic origin edit, which can utilize Hispanic origin and race information that was reported in the inappropriate question.
For more information on Hispanic or Latino, please telephone 301-457-2403.