Search PubMed⌕ Search

SEARCH · Search PubMed

Results for “Census”

Search indexed PubMed citations on genomics, clinical trials, systematic reviews and public health. Explore titles, authors and supplied subject terms, then open the PubMed record.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 217 records · Page 12Linked to original sources
PubMed1984

Geographic distribution of undocumented immigrants: estimates of undocumented aliens counted in the 1980 census by state.

"This article presents estimates of the number of undocumented aliens counted in the 1980 [U.S.] census for each state and the District of Columbia. The estimates, which indicate that 2.06 million undocumented aliens were counted in the 1980 census, are not based on individual records, but are aggregate estimates derived by a residual technique. The census count of aliens (modified somewhat to account for deficiencies in the data) is compared with estimates of the legally resident alien population based on data collected by the Immigration and Naturalization Service in January 1980." Estimates are provided "for each of the states for selected countries of birth and for age, sex, and period of entry categories.... The origins of the undocumented alien population [are described], as well as some of their demographic characteristics. Some of the implications of the numbers and distribution of undocumented aliens are also discussed." This paper was originally presented at the 1984 Annual Meeting of the Population Association of America (see Population Index, Vol. 50, No. 3, Fall 1984, p. 435).

Age Distribution↗
PubMed1988

[Spatial mobility projections of the population census: comparison with other sources].

This paper considers the descriptive capacity of Italian census data on spatial mobility. A systematic comparison is carried out between the Italian census and traditional sources--particularly the population register. The discussion concerns the items collected and published as well as the measurements obtained, their meaning, and their comparability. Many examples are presented, especially on migration flows during the 1976-1981 period, as recorded by the 1981 Italian population census, applied to the whole country as well as the regions, with particular reference to the Veneto region.

Censuses↗
PubMed2004

Limitations and potential uses of census-based data on ethnicity in a diverse community.

PURPOSE: Information on ethnicity, socioeconomic status, and social class has value in epidemiologic research and in measurement of the quality of health care but it is difficult to obtain for large populations. This evaluation assessed the potential usefulness of ethnicity data based on address geocoding to the 2000 census. METHODS: We compared ethnicity based on the geocoding data with ethnicity from hospitalization records and birth certificates of a large health maintenance organization. RESULTS: Of 117,209 members with black ethnicity recorded at the time of a hospitalization, the mean percentage of blacks in their geocoded block was only 37%. Among the 62,661 individuals recorded as Asian at the time of a hospitalization, the mean percentage of Asians in their geocoded block was only 24%. Among the 47,328 individuals who lived in a census block that had 50% or more blacks, 81% were recorded as black at the time of a hospitalization. Among the 24,424 individuals who lived in a census block that had 50% or more Asians, 38% were recorded as being Asian at the time of a hospitalization. CONCLUSIONS: In our population, information on ethnicity derived from geocoding at the block level cannot be used to infer the ethnicity of Asian or black individuals.

Adolescent↗
PubMed1997

Physician location survey: self-reported and census-defined rural/urban locations.

Using a survey of New York State Residence-Trained Family Physicians and the 1990 census data, this paper assesses the relative importance and consistency of factors associated with physician practice locations when different definitions of community size are used. By matching the zip code information with 434 physicians' practice locations, physician respondents' self-reported communities are linked to census-defined communities. It was found that the significant level of some variables could be affected when community classifications were based on survey responses rather than census data. It concludes that caution should be taken for interpreting rural-urban differences when data are solely based on self-reported practice locations.

Attitude of Health Personnel↗
PubMed2003

Census vs. effective population size in chinook salmon: large- and small-scale environmental perturbation effects.

Population viability has often been assessed by census of reproducing adults. Recently this method has been called into question and estimation of the effective population size (Ne) proposed as a complementary method to determine population health. We examined genetic diversity in five populations of chinook salmon (Oncorhynchus tshawytscha) from the upper Fraser River watershed (British Columbia, Canada) at 11 microsatellite loci over 20 years using DNA extracted from archived scale samples. We tested for changes in genetic diversity, calculated the ratio of the number of alleles to the range in allele size to give the statistic M, calculated Ne from the temporal change in allele frequency, used the maximum likelihood method to calculate effective population size (NeM), calculated the harmonic mean of population size, and compared these statistics to annual census estimates. Over the last two decades population size has increased in all five populations of chinook examined; however, Ne calculated for each population was low (81-691) and decreasing over the time interval measured. Values of NeM were low, but substantially higher than Ne calculated using the temporal method. The calculated values for M were generally low (M < 0.70), indicating recent population reductions for all five populations. Large-scale historic barriers to migration and development activities do not appear to account for the low values of Ne; however, available spawning area is positively correlated with Ne. Both Ne and M estimates indicate that these populations are potentially susceptible to inbreeding effects and may lack the ability to respond adaptively to stochastic events. Our findings question the practice of relying exclusively on census estimates for interpreting population health and show the importance of determining genetic diversity within populations.

Animals↗
PubMed2007

Advantages and challenges of using census and multiplier methods to estimate the number of female sex workers in a Chinese city.

Using census and multiplier methods to estimate the size of the population of female sex workers (FSWs) in a small city in western China, this study compared the advantages and challenges of the two methods. It was estimated that there were about 1,500 FSWs within the urban area using the census method, which was significantly lower than that estimated by the multiplier method (2,500). Each method has advantages and limitations, and could be applied to different situations. The census method is less time and resource consuming in smaller regions and has a tendency to underestimate, and therefore, the result can be viewed as a low limit. It is useful in a local setting, for example, when estimations are needed for planning HIV/AIDS prevention programmes in a single city. Using existing information or resources, multiplier method could be used to produce estimates for a large geographic area or at a national level.

Censuses↗
PubMed2000

The new 2001 Census question set on cultural characteristics: is it useful for the monitoring of the health status of people from ethnic groups in Britain?

The health of minority ethnic groups has been accorded a priority position in the British government's strategy to improve the population's health, including the provision of the necessary information to address inequalities. The independent Acheson Inquiry has also called for improvements in the capacity to monitor inequalities in health of ethnic groups which requires the use of appropriate ethnic group categories. The new 2001 Census question set includes a substantially revised ethnic group question and a new question on religion which address some of the shortcomings in the 1991 Census question. However, the token breakdown of the white group and its unsatisfactory capture of those of Irish origin, the use of Indian subcontinent groups that ignore ethno-religious differences and have little saliency amongst those being described, and the omission in Scotland of a subdivided white group and the religion question, are important deficiencies. The use of a few pan-ethnic racial groups in the proposed census tables is a major drawback. It is important that these changes are widely debated.

Censuses↗
PubMed1996

Can data from the decennial census measure trends in mobility limitation among the aged?

We evaluate whether trends in the prevalence of disability among the aged can be investigated using the 1980 U.S. Census' public transportation question and the 1990 query on mobility limitation. Despite the obvious difference in the two questions, we found remarkable similarity in major cross-sectional patterns, such as those by age and sex, when comparing results from the two data sets. This result, coupled with the large number of observations available in the U.S. censuses, suggests that census data may be a suitable data source to study mobility limitation patterns in the small subgroups of the population that are frequently underrepresented in sample surveys.

Activities of Daily Living↗
PubMed1998

Weighted Census-based deprivation indices: their use in small areas.

BACKGROUND: The concept of deprivation refers to the conditions experienced by people who are poor, whereas the concept of poverty relates to the lack of income and other resources that make these conditions difficult to break away from. The usual Census-based deprivation indices are often based on equally weighted (and highly correlated) variables. This is in spite of the fact that different social groups have been shown in numerous studies to have differing probabilities of suffering from deprivation. A weighted deprivation index based on individual level data and Census data produces a more accurate and more easily understandable method of estimating deprivation within an area, as it reflects the differences between social groups. This paper will describe how a technique used by Gordon (J Epidemiol Commun Hlth 1995; 49(Suppl. 2): S39-S44) can be applied to smaller areas to give estimates of the number of deprived living within them, producing a weighted index. METHODS: Breadline Greenwich data together with Census data were used to estimate the percentage of poor households in Greenwich wards using similar methods to those of Gordon. RESULTS: The results produced were very similar to the numbers estimated using the Breadline Britain weightings but there were differences in individual weightings for some of the variables. CONCLUSION: Gordon's approach can be applied to smaller areas to give estimates of the number of deprived using the nationally derived weightings. More accurate local estimates, subject to the different local conditions, can be easily derived if a similar survey to the Breadline Britain survey is conducted locally.

Censuses↗
PubMed2002

A community study of health promotion in rural West Africa: details of a household survey and population census.

BACKGROUND: Hypertension is an important problem in sub-Saharan Africa. The low use of processed food in this area makes a population approach to reducing salt intake feasible. AIM: To create an age-sex register for 12 villages in Ghana as the first stage of a community study of the effect of dietary salt reduction on blood pressure and urinary sodium excretion in West African villagers. DESIGN: Household survey and population census. METHODS: Over three months, village maps were sketched and a complete list of total number of households, adults (with age and gender) and children in each village was obtained. RESULTS: The six semi-urban villages were larger than the six rural villages (10368 vs. 6597 inhabitants) and almost half the total population was under 16. CONCLUSIONS: Accurate census data are important in the design, implementation and interpretation of community studies and intervention trials. We outline the methods by which census data can be collected in rural and semi-urban sub-Saharan African villages, and emphasize the importance of painstaking, thorough work in the collection of such data.

Adolescent↗
PubMed1998

A census-based comparison of centenarians in New Zealand with those in the United States.

OBJECTIVE: To describe the characteristics of New Zealand's centenarians, as given in the 1991 census, and to compare these characteristics with those of centenarians from the United States. DESIGN: A census-based descriptive study. SETTING: The complete national population as defined by the 1991 New Zealand census. RESULTS: In 1991, there were 246 female and 51 male centenarians in New Zealand. Fifty-one percent of the men and 29% of the women lived at home; 16% lived at home with someone else (55% with children). People who were widowed were more likely to be living in a residential institution (69%) than people who were married (40%). Forty-three percent of men and 39% of women earned less than NZ$10,000 per year. Most had no formal educational qualification. Fourteen percent of men and 35% of women living at home did housework in the previous week. Compared with the United States, there are fewer New Zealand centenarians per number of population. People of European race were overrepresented in the New Zealand centenarian population, whereas African Americans were overrepresented in the United States centenarian population. CONCLUSIONS: Our data have shown the heterogeneity associated with extreme ageing and can be used as a basis for comparison with other countries.

Activities of Daily Living↗
PubMed2004

Cumulative deprivation and cause specific mortality. A census based study of life course influences over three decades.

OBJECTIVE: To examine whether increasing cumulative deprivation has an incremental effect on total as well as cause specific mortality. DESIGN: Census data on housing conditions as indicators of deprivation from 1960, 1970, and 1980 were linked to 1990-98 death registrations. Relative indices of inequalities were computed for housing conditions to measure the cumulative impact of differences in social conditions. PARTICIPANTS: 97 381 (71.1%) 30-49 year old and 70701 (80.0%) 50-69 year old inhabitants of Oslo, Norway, in 1990 with census information on housing conditions and recorded length of education. MAIN RESULTS: Mortality risk was increased when all censuses' housing conditions were summed in both age groups and sex. The cause specific analysis indicated such an effect particularly for coronary heart disease, chronic obstructive lung disease, and smoking related cancers. Violent deaths were essentially associated with housing conditions closer to the time of death in men in both age groups and in young women. CONCLUSIONS: To fully account for socially mediated risk of death, a full life course approach should be adopted. The relative importance of each stage seems to vary by cause of death.

Adult↗
PubMed2006

Changes in socioeconomic inequalities in census measures of health in England and Wales, 1991-2001.

STUDY OBJECTIVES: To investigate changes in socioeconomic inequalities in census measures of health in England and Wales between 1991 and 2001. DESIGN: Indirect standardisation was used to calculate age standardised rates of limiting long term illness and permanent sickness in men and women in all residential wards in England and Wales in 1991 and 2001. The socioeconomic position of each ward was determined using Townsend deprivation scores. SETTING: All residential wards in England and Wales in 1991 and 2001. PARTICIPANTS: All people aged 16-65 who provided census information in the 1991 or 2001 censuses. MAIN RESULTS: There was strong evidence that Townsend deprivation score quintile could predict both logged standardised permanent sickness rate and logged standardised limiting long term illness rate. There was evidence that socioeconomic inequalities in standardised limiting long term illness rates decreased between 1991 and 2001 in both men and women and that socioeconomic inequalities in standardised permanent sickness rates decreased in women but increased in men between 1991 and 2001. CONCLUSIONS: As permanent sickness rates seem to reflect labour market accessibility, this study may have found evidence that socioeconomic inequalities in self reported morbidity decreased but inequalities in labour market participation in men increased between 1991 and 2001.

Adolescent↗
PubMed2006

Using GIS in a first national mapping of functional disability among older American Indians and Alaska Natives from the 2000 census.

BACKGROUND: Geographical information systems (GIS) have been used mainly in understanding infectious diseases and environmental threats in health research. Here, GIS was used to examine patterns of functional disability as one impact of chronic disease in American Indians and Alaska Natives. The study purpose was to create the first national mapping of functional disability for AIANs using the 2000 U.S. Census. RESULTS: American Indians and Alaska Natives over age 65 reported disability at a rate of 57.6% versus 41.9% for all people over 65 (P < or = 0.0001). Regional differences in levels and type of disability were evident. CONCLUSION: Maps help visualize those who might otherwise be 'lost' from the data. The significance of this study is that gerontologic programs and policies are data-driven, yet there is a lack of reliable national level data from US health systems on functional disability among American Indians and Alaska Natives. One study limitation was that Census questions regarding disability differed from traditional measures of activities of daily living and instrumental activities of daily living. An immediate policy recommendation would be to incorporate standard activities of daily living and instrumental activities of daily living language into future Census for a comprehensive, linked database for the future.

Aged↗
PubMed2005

Comparison of farmers in the agricultural health study to the 1992 and the 1997 censuses of agriculture.

CONTEXT: The Agricultural Health Study (AHS) is a large, prospective cohort study in the states of Iowa and North Carolina that has been developed to better understand how pesticides and other agricultural exposures relate to the occurrence of cancer and other diseases. PURPOSE: This report compares the characteristics of AHS farmers to the Census of Agriculture to evaluate the generalizability of AHS findings. METHODS: We restricted the AHS to private pesticide applicators who enrolled in Iowa (n = 31,065) and in North Carolina (n = 17,239) between 1993 and 1997, and who identified themselves as living or working on a farm. We compared their self-reported data with data from the 1992 and 1997 Censuses of Agriculture. FINDINGS: AHS farmers in Iowa are younger; live or work on larger farms; more frequently apply herbicides, insecticides, and fungicides; and are more likely to raise beef cattle and swine, and grow corn, soybeans, hay, and oats. AHS farmers in North Carolina are also younger, live or work on larger farms, more frequently reported growing crops commonly seen in the state, and are more frequent pesticide users. However, animals raised are similar to those in the North Carolina Census of Agriculture. CONCLUSIONS: AHS farmers likely represent the higher end of pesticide usage in both states in part because AHS farmers have larger farms. Since the health effects of pesticides are best ascertained among pesticide users with the greatest exposure, the AHS cohort should prove to be a valuable resource for health effects research.

Adult↗
PubMed2004

Coming to stay: an analysis of the U.S. census question on immigrants' year of arrival.

Using the New Immigrant Survey Pilot, we compare answers to the census question on year of arrival in the United States with answers to questions about the dates and durations of earlier U.S. trips. We show that the year identified by the census does not correspond to the year of either the first or the last U.S. trip. Because many immigrants enter and leave the United States several times before becoming legal immigrants, the census question produces estimates of U.S. experience that are quite different from those produced by direct questions about trip durations.

Adult↗
PubMed2004

Nineteenth century Indian leper censuses and the doctors.

This study describes the circumstances under which enumerations of "lepers" were conducted in India in the late 19th century, and the ideological biases of the respective investigators and the meanings that they read into the statistics. This report focuses on the Bombay Presidency leprosy returns of 1867, examined in 1871 by Henry Vandyke Carter, and the decennial nation-wide population census of 1871-1872, 1881, and 1891, in which the leprosy-affected, among other infirm persons, were also enumerated. The evidence examined includes the investigators' reports and other published and unpublished contemporaneous documents. These censuses were undertaken at a time when the etiology of leprosy was a major controversy, but the evidence here indicates that the efforts to clarify the etiology and estimate the virulence of the disease in India by means of statistics were animated by the desire to justify and embellish pre-conceptions. Despite the claim that they were necessary for leprosy control, the censuses, for various reasons, were not utilized towards that end in India.

Advisory Committees↗
PubMedDate not supplied

[Surveillance of endemic diseases in urban areas: the interface between census tract maps and morbidity data].

In this article we discuss the methodological issues associated with the creation of a surveillance system for endemic diseases in urban areas based on analysis of populations at risk and on spatially referenced epidemiological indicators. We comment on the system's basic requirements, selection criteria for socioeconomic variables, and methodological steps to combine these variables so as to construct a census-based deprivation index. We also present the ways we solved some operational problems related to generation of digitized census tracts maps and linkage of morbidity data from different sources. This approach, spatial organization into account in surveillance of endemic diseases, exemplified here by tuberculosis and leprosy, allows for the interaction of several official data sets from census and health services in order to geographically discriminate inner-city risk strata. Criteria for constructing these risk strata were considered a useful tool for health planning and management activities for the control of endemic diseases in cities.

Brazil↗