Data Dictionary: ACS 2007 (1-Year Estimates)
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Data Source: U.S. Census Bureau
Table: B12002. Sex By Marital Status By Age For The Population 15 Years And Over [187]
Universe: Population 15 years and over
Table Details
B12002. Sex By Marital Status By Age For The Population 15 Years And Over
Universe: Population 15 years and over
Variable Label
B12002001
B12002002
B12002003
B12002004
B12002005
B12002006
B12002007
B12002008
B12002009
B12002010
B12002011
B12002012
B12002013
B12002014
B12002015
B12002016
B12002017
B12002018
B12002019
B12002020
B12002021
B12002022
B12002023
B12002024
B12002025
B12002026
B12002027
B12002028
B12002029
B12002030
B12002031
B12002032
B12002033
B12002034
B12002035
B12002036
B12002037
B12002038
B12002039
B12002040
B12002041
B12002042
B12002043
B12002044
B12002045
B12002046
B12002047
B12002048
B12002049
B12002050
B12002051
B12002052
B12002053
B12002054
B12002055
B12002056
B12002057
B12002058
B12002059
B12002060
B12002061
B12002062
B12002063
B12002064
B12002065
B12002066
B12002067
B12002068
B12002069
B12002070
B12002071
B12002072
B12002073
B12002074
B12002075
B12002076
B12002077
B12002078
B12002079
B12002080
B12002081
B12002082
B12002083
B12002084
B12002085
B12002086
B12002087
B12002088
B12002089
B12002090
B12002091
B12002092
B12002093
B12002094
B12002095
B12002096
B12002097
B12002098
B12002099
B12002100
B12002101
B12002102
B12002103
B12002104
B12002105
B12002106
B12002107
B12002108
B12002109
B12002110
B12002111
B12002112
B12002113
B12002114
B12002115
B12002116
B12002117
B12002118
B12002119
B12002120
B12002121
B12002122
B12002123
B12002124
B12002125
B12002126
B12002127
B12002128
B12002129
B12002130
B12002131
B12002132
B12002133
B12002134
B12002135
B12002136
B12002137
B12002138
B12002139
B12002140
B12002141
B12002142
B12002143
B12002144
B12002145
B12002146
B12002147
B12002148
B12002149
B12002150
B12002151
B12002152
B12002153
B12002154
B12002155
B12002156
B12002157
B12002158
B12002159
B12002160
B12002161
B12002162
B12002163
B12002164
B12002165
B12002166
B12002167
B12002168
B12002169
B12002170
B12002171
B12002172
B12002173
B12002174
B12002175
B12002176
B12002177
B12002178
B12002179
B12002180
B12002181
B12002182
B12002183
B12002184
B12002185
B12002186
B12002187
Relevant Documentation:
Excerpt from: Social Explorer; U.S. Census Bureau; American Community Survey 2007 Summary File: Technical Documentation.
 
Sex
The data on sex were derived from answers to Question 1. Individuals were asked to mark either "male" or "female" to indicate their sex. For most cases in which sex was not reported, the appropriate entry was determined from the person's 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.
Sex Ratio
The sex ratio represents the balance between the male and female populations. Ratios above 100 indicate a larger male population, and ratios below 100 indicate a larger female population. This measure is derived by dividing the total number of males by the total number of females and then multiplying by 100. It is rounded to the nearest tenth.
Limitation of the data
Beginning in 2006, the population in group quarters (GQ) is included in the ACS. Some types of GQ populations have sex distributions that are very different from the household population. The inclusion of the GQ population could therefore have a noticeable impact on the sex distribution. This is particularly true for areas with a substantial GQ population.
The Census Bureau tested the changes introduced to the 2007 version of the sex question in the 2007 ACS Grid-Sequential Test (http://www.census.gov/acs/www/Downloads/ACS-MP-09_Grid-Sequential_Test_Final_Report.pdf). The results of this testing show that the changes may introduce an inconsistency in the data produced for this question as observed from the years 2006 to 2007
Question/Concept History
The sex question has remained the same.
Excerpt from: Social Explorer; U.S. Census Bureau; American Community Survey 2007 Summary File: Technical Documentation.
 
Marital Status
The data on marital status were derived from answers to Question 4. The marital status classification refers to the status at the time of interview. Data on marital status are tabulated only for people 15 years old and over.
All people were asked whether they were "now married," "widowed," "divorced," "separated," or "never married." Couples who live together (unmarried people, people in common-law marriages) were allowed to report the marital status they considered the most appropriate. When marital status was not reported, it was imputed according to the relationship to the householder and sex and age of the person.
Differences in the number of currently married males and females occur because there is no step in the weighting process to equalize the weighted estimates of husbands and wives.
Never Married
Includes all people who have never been married, including people whose only marriage(s) was annulled.
Ever Married
Includes people ever married at the time of interview (including those now married, separated, widowed, or divorced).
Now Married, Except Separated
Includes people whose current marriage has not ended through widowhood, divorce, or separation (regardless of previous marital history). The category may also include couples who live together or people in common-law marriages if they consider this category the most appropriate. In certain tabulations, currently married people are further classified as "spouse present" or "spouse absent."

Separated
Includes people legally separated or otherwise absent from their spouse because of marital discord. Those without a final divorce decree are classified as separated. This category also includes people who have been deserted or who have parted because they no longer want to live together but who have not obtained a divorce.
Widowed
Includes widows and widowers who have not remarried.
Divorced
Includes people who are legally divorced and who have not remarried. Those without a final divorce decree are classified as separated. In selected tabulations, data for married and separated people are reorganized and combined with information on the presence of the spouse in the same household.
Now Married
All people whose current marriage has not ended by widowhood or divorce. This category includes people defined above as "separated."
  • Spouse Present

Married people whose wife or husband was reported as a member of the same household or same group quarters facility, including those whose spouses may have been temporarily absent for such reasons as travel or hospitalization.
  • Spouse Absent

Married people whose wife or husband was not reported as a member of the same household or the same group quarters facility.
  • Separated

Defined above.
  • Spouse Absent, Other

Married people whose wife or husband was not reported as a member of the same household, excluding separated. Included is any person whose spouse was employed and living away from home or in an institution or serving away from home in the Armed Forces.

Differences between the number of currently married males and the number of currently married females occur because of reporting differences and because some husbands and wives have their usual residence in different areas. By definition, the numbers would be the same.
Median Age at First Marriage
The median age at first marriage is calculated indirectly by estimating the proportion of young people who will marry during their lifetime, calculating one-half of this proportion, and determining the age (at the time of the survey) of people at this half-way mark by osculatory interpolation. It does not represent the actual median age of the population who married during the calendar year. It is shown to the nearest tenth of a year. Henry S. Shryock and Jacob S. Siegel outline the osculatory procedure in Methods and Materials of Demography , First Edition (May 1973), Volume 1, pages 291-296.
Marital History
Beginning in 2007, people 15 years and over who were ever married (currently married, widowed, separated, or divorced) were asked if they had been married, widowed, or divorced in the past 12 months. They were asked how many times (once, two times, three or more times) they have been married, and the year of their last marriage.
Limitation of the Data
Beginning in 2006, the population in group quarters (GQ) is included in the ACS. Some types of GQ populations have marital status distributions that are very different from the household population. The inclusion of the GQ population could therefore have a noticeable impact on the marital status distribution. This is particularly true for areas with a substantial GQ population.
Question/Concept History
The word "current" was dropped from the 1996-1998 question. Since 1999, the question states, "What is this persons marital status?" The American Community Survey began providing the median age at first marriage with the 2004 data.
Excerpt from: Social Explorer; U.S. Census Bureau; American Community Survey 2007 Summary File: Technical Documentation.
 
Age
The data on age were derived from answers to Question 2. The age classification is based on the age of the person in complete years at the time of interview. Both age and date of birth are used in combination to calculate the most accurate age at the time of the interview. Inconsistently reported and missing values are assigned or imputed based on the values of other variables for that person, from other people in the household, or from people in other households ("hot deck" imputation). Data on age are used to determine the applicability of other questions for a particular individual and to classify other characteristics in tabulations. Age data are needed to interpret most social and economic characteristics used to plan and analyze programs and policies. Therefore, age data are tabulated by many different age groupings, such as 5-year age groups.
Median Age
The median age is the age that divides the population into two equal-size groups. Half of the population is older than the median age and half is younger. Median age is based on a standard distribution of the population by single years of age and is shown to the nearest tenth of a year. (See the sections on "Standard Distributions" and "Medians" under "Derived Measures.")
Age Dependency Ratio
The age dependency ratio is derived by dividing the combined under-18 and 65-and-over populations by the 18-to-64 population and multiplying by 100.
Old-Age Dependency Ratio
The old-age dependency ratio is derived by dividing the population 65 years and over by the 18-to-64 population and multiplying by 100.
Child Dependency Ratio
The child dependency ratio is derived by dividing the population under 18 years by the 18-to-64 population, and multiplying by 100.
Limitation of the Data
Caution should be taken when comparing population in age groups across time. The entire population continually ages into older age groups over time and babies fill in the youngest age group. Therefore, the population of a certain age is made up of a completely different group of people in 2000 and 2007. Since populations occasionally experience booms/increases and busts/decreases in births, deaths, or migration (for example, the postwar Baby Boom from 1946-1964), one should not necessarily expect that the population in an age group in Census 2000 should be similar in size or proportion to the population in the same age group in the 2007 ACS. For example, Baby Boomers were age 36 to 54 in Census 2000 while they were age 44 to 62 in the 2007 ACS. Therefore, the age group 55 to 59 would show a considerable increase in population when comparing Census 2000 data with the 2007 ACS data.
Beginning in 2006, the population in group quarters (GQ) is included in the ACS. Some types of GQ populations have age distributions that are very different from the household population. The inclusion of the GQ population could therefore have a noticeable impact on the age distribution. This is particularly true for areas with a substantial GQ population.
Question/Concept History
The 1996-2002 American Community Survey question asked for month, day, and year of birth before age. Since 2003, the American Community Survey question asked for age, followed by month, day, and year of birth. In 2007, an additional instruction was provided with the age and date of birth question on the American Community Survey questionnaire to report babies as age 0 when the child was less than 1 year old. The addition of this instruction occurred after 2005 National Census Test results indicated increased accuracy of age reporting for babies less than one year old.