An overview of the 72.3 million children reported in the 2000 census.
A review of the 2000 census provides a general appreciation of the evolving demographic characteristics of the greatest number of youngsters in our nation's history.
Adolescent↗
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A census of mammal populations in Punta Leona Private Wildlife Refuge, Costa Rica.
Population sizes of six mammal species were estimated using the King method during the late dry season (March) of 1996 in the Punta Leona Private Wildlife Refuge, Costa Rica. The white-faced monkey (Cebus capucinus), coati (Nasua narica) and nine-banded armadillo (Dasypus novemcinctus) with 148, 46, and 8 sighted individuals, respectively, demonstrated the largest populations in the refuge. The Central American spider monkey (Ateles geoffroyi), tamandua anteater (Tamandua mexicana), and variegated squirrel (Sciurus variegatoides) were also included in the census. Population densities are calculated, habitat types are described, and habitat use and activity periods are discussed.
Animals↗
Census survey for a primary health care programme.
OBJECTIVE: To describe the process of gathering information from a census survey as a preliminary step for supporting the working of a primary health care center. It also presents briefly the results of the survey and its broader implications on the health needs of the local population. METHODS: A questionnaire was used to obtain basic information regarding the ethnicity/area of origin, number of household members and their breakdown according to gender, age and marital status. The medical students of different batches were involved in the data collection process, as part of their Survey Methodology course of Community Health Sciences (CHS) in first year. RESULTS: Data was obtained from 2,033 houses, having a total population of 16,118 persons. Fifty three per cent of the population was under fifteen years, 42% were between 15-49 and 5% were over 50 years of age. The overall percentage of males was 52% and females 48%. Approximately 79 percent people were Pushto speaking. CONCLUSION: Sikanderabad is a typical slum settlement, with an emigrant population being mostly of Pathan and Afghan refugees. The fertility rate in Sikanderabad is much higher than that of Karachi. This highlights the need for education and availability of family planning facilities. At the same time, due to the fact that there is a major portion of the population aged under five years, so facility for treating children must be appropriately provided. The Primary Health Care center established in Sikanderabad is based on the above information. The emphasis is on maternal and childcare, including antenatal and postnatal care; family planning and nutritional counseling.
Adolescent↗
Diurnal primate densities and biomass in the Kakamega Forest: an evaluation of census methods and a comparison with other forests.
Line-transect surveys were conducted at the Isecheno study site in the Kakamega Forest, western Kenya to estimate diurnal primate densities. The estimates from several different methods of analysis of census data were compared to "true" density values based on home range size and overlap for two species. The Whitesides method [Whitesides et al., 1988], which incorporates species-specific mean group spread into its formula for estimating transect width, provided the most accurate density estimates. The importance of including as many groups as possible when calculating density from home range size and overlap is demonstrated with long-term data from Colobus guereza and Cercopithecus mitis. Colobus guereza group density at Isecheno was much lower than that published from a recent brief study [von Hippel, 1996]. Cercopithecus mitis group density has fallen while overall population biomass appears to have remained stable over 20 years of study. Isecheno has the second highest diurnal primate biomass of the ten Guineo-Congolian rainforest sites for which biomass data are available, despite having the lowest primate species richness. Within the Guineo-Congolian rainforest system, primate biomass appears to vary to some extent between ecogeographic regions: two of three mid-elevation East African sites have high biomasses, two of two lowland West African sites have intermediate biomasses, and four of five lowland Central African sites have low biomasses. There is a strong positive correlation between total colobine biomass and total primate biomass at the ten Guineo-Congolian rainforest sites.
Animals↗
A classification scheme for aggregating U.S. census occupation and industry codes.
The use of occupation as a surrogate for workplace exposures when more specific information is unavailable is common yet is particularly challenging in studies involving many diverse occupations. A classification scheme that aggregates workers based on similar job tasks and potential exposures was developed for use in a Canadian study, and its adaptation for a similar U.S. study is described. The 56 occupational categories and 1980 U.S. census occupation and industry codes used to create each are presented. The scheme was developed using the distribution of occupations and industries in two limited study populations, and no exposure measurements were taken in its preparation. However, the aggregation of jobs with similar exposures has practical utility in the analysis of a large number of specific occupations, each with a small number of workers. As a result, the scheme presented can provide a starting point for researchers facing this task in the analysis of case-control occupational data.
Data Collection↗
Immigration impacts on internal migration of the poor: 1990 census evidence for U.S. states.
"This article presents newly-available migration data from the 1990 U.S. census to assess immigration and internal migration components as they affect state poverty populations. New immigrant waves are heavily focused on only a few 'port-of-entry' states. It is suggested that these immigrants have begun to impact upon internal migration into and out of these 'high immigration states', and have also altered the national system of internal migration patterns. This article addresses three questions: How do the magnitudes of poverty population out-migration from high immigration states compare with those of other states? Is this out-migration selective on particular social and demographic groups? Is immigration a significant determinant of internal migration of the poor population? The results of this analysis are consistent with the view that recent, focused immigration is associated with out-migration among a state's poor longer-term residents."
Americas↗
Variation in heart disease mortality across census tracts as a function of overdispersion and social class mixture.
Variation in heart disease (HD) mortality rates across census tracts is greater than expected given binomial error and available explanatory variables. We extended an extra-binomial variation model for rates standardized by the direct method. The overdispersion parameter accounted for 36 per cent of the observed variation in standardized rates. Ignoring overdispersion resulted in a change in an estimate of the effect of social class on HD mortality and substantial underestimation of the error of the estimates of such effects. Ecologic regression on the proportional mixture of social classes within tracts provided an appealing approach to the problem of estimating fixed effects with aggregated data.
Adolescent↗
A structural census of genomes: comparing bacterial, eukaryotic, and archaeal genomes in terms of protein structure.
Representative genomes from each of the three kingdoms of life are compared in terms of protein structure, in particular, those of Haemophilus influenzae (a bacteria), Methanococcus jannaschii (an archaeon), and yeast (a eukaryote). The comparison is in the form of a census (or comprehensive accounting) of the relative occurrence of secondary and tertiary structures in the genomes, which particular emphasis on patterns of supersecondary structure. Comparison of secondary structure shows that the three genomes have nearly the same overall secondary-structure content, although they differ markedly in amino acid composition. Comparison of super-secondary structure, using a novel "frequent-words" approach, shows that yeast has a preponderance of consecutive strands (e.g. beta-beta-beta patterns), Haemophilus, consecutive helices (alpha-alpha-alpha), and Methanococcus, alternating helix-strand structures (beta-alpha-beta). Yeast also has significantly more helical membrane proteins than the other two genomes, with most of the differences concentrated in proteins containing two transmembrane segments. Comparison of tertiary structure (by sequence matching and domain-level clustering) highlights the substantial duplication in each genome (approximately 30% to 50%), with the degree of duplication following similar patterns in all three. Many sequence families are shared among the genomes, with the degree of overlap between any two genomes being roughly similar. In total, the three genomes contain 148 of the approximately 300 known protein folds. Forty-five of these 148 that are present in all three genomes are especially enriched in mixed super-secondary structures (alpha/beta). Moreover, the five most common of these 45 (the "top-5") have a remarkably similar super-secondary structure architecture, containing a central sheet of parallel strands with helices packed onto at least one face and beta-alpha-beta connections between adjacent strands. These most basic molecular parts, which, presumably, were present in the last common ancestor to the three Kingdoms, include the TIM-barrel, Rossmann, flavodoxin, thiamin-binding, and P-loop-hydrolase folds.
Archaea↗
A comparison of human toxics exposure and environmental contamination by census division.
National Human Adipose Tissue Survey (NHATS) data and U.S. Environmental Protection Agency (U.S. EPA) STORET data were used to test for relationships between human exposure and environmental contamination according to census division. Regions were ranked according to the mean concentration of 43 toxic substances (pesticides, polychlorinated biphenyls, semi-volatiles, and volatiles) in human adipose tissue and environmental media (sediment, fish tissue, and groundwater). Correlation analyses between regional human and environmental ranks indicated that fish tissue data were good predictors of regional pesticide exposure, sediment data were good predictors of PCB exposure, and groundwater data were good predictors of exposure to semi-volatile compounds. None of the environmental data used were good predictors of exposure to volatile chemical compounds. Groundwater appeared to be a better predictor of overall regional toxics exposure than other types of environmental data.
Animals↗
[Departure of children and contraction of the family as observed in the 1971 and 1981 Canadian censuses].
An analysis of data from the 1971 and 1981 Canadian censuses is presented concerning children leaving home. "It is estimated that the timing of children's departure from their family of origin was almost the same in 1981 as in 1971; median age at departure was identical: 20.5 for women and 22.3 for men. Broken families, more numerous than in the past, become contracted earlier than unbroken families; among unbroken families, the contraction phase started earlier in 1981 than in 1971 among large or medium-sized families while it began later among small families." (SUMMARY IN ENG)
Age Factors↗
Poisson regression models of Canadian census division migration flows.
"This paper examines the amount, spatial pattern, and correlates of migration in Canada at the census division scale. The effects of distance, economic prosperity, social and cultural conditions, community size, and the housing market are investigated.... Poisson regression techniques were used to avoid the estimation problems frequently encountered in log-normal regression."
Americas↗
Clinical and administrative consequences of a reduced census on a psychiatric intensive care unit.
The Psychiatric Intensive Care Unit at the FDR VA Hospital is a specialized ward designed to assess and treat suicidal and assaultive patients. Since its creation in 1983, over 1600 admissions have taken place. The authors have previously reported that patients referred for aggressive behavior had a statistically significant higher recidivism rate, as well as a statistically significant longer length of stay. The unit went through several changes in response to externally perceived needs and available resources. When the census cap was decreased, the referral pattern changed and the patients were even more likely to be aggressive. Length of stay decreased dramatically leading to a unit with a significantly higher turnover rate. Clinical and administrative concerns are also discussed.
Aggression↗
[Nursing care cases and acute-care hospital beds: results of a one-day census].
For the purposes of an analysis of the hospital capacities of the canton of Basel-Stadt, a one-day census was conducted on April 20, 1983. On that day, the physicians in charge identified every fifth patient out of 2920 hospitalized patients as misplaced. "Misplaced" means that, from a medical point of view, mostly elderly patients could be treated and cared for as well (and cheaper) in other institutions (e.g., nursing homes) or in community settings if adequate home care services were available.
Aged↗
Consistency of ancestry reporting between parents and children in the 1986 census.
The author examines responses to a question on ancestry that was included in the 1986 census of Australia, with a focus on consistencies between the responses of parents and children. It is found that "the level of consistency was more than 90 per cent when both parents were of the same ancestry; when parents were of different or mixed ancestries, the level of consistency was lower. It was estimated that about 75 per cent of all dependent children had an ancestry response consistent with that of the parent or parents with whom they lived."
Adolescent↗
Prevalence of mental illness among homeless men in the community--approach to a full census in a southern German university town.
AIM: Within the framework of a study of homeless men in the university town of Tubingen in southern Germany, the prevalence of psychiatric disorders and the existing help-seeking behavior, among other things, were to be recorded. METHOD: A total of 151 men belonging to the target group were identified; 91 of them participated in the study. Besides the psychiatric diagnosis, the registered data included psychopathology, cognitive capacity, social functioning and satisfaction with life, as well as social history and case history. RESULTS: Of the probands, 73% were suffering from at least one ongoing psychiatric disorder (diagnosed according to ICD-10 and DSM-IV), primarily alcohol dependence (74%) and drug dependence (34 %), 26% were suffering from an anxiety disorder, 15% from an affective disorder, and 11 % from a disorder of the schizophrenic spectrum. Comorbidity was diagnosed in 67%. Targeted help-seeking behavior concerning the psychiatric or addictive symptoms was extremely rare. Emergency contacts existed with hospitals and general practitioners. DISCUSSION: This study represents the first attempt within Germany and Europe at a full census of homeless men. In international terms, the target region-a small town on the fringes of a conurbation-is a special case. However, compared with studies of help-seeking populations in large cities, virtually no differences were recorded with respect to the prevalence of psychiatric disorders or to help-seeking behavior concerning psychiatric problems and addictions. On the other hand, a substantial number of those concerned evade a resource-intensive, outreach-based study like the present one. Because of German data protection legislation, data on these subjects remain sparse. Concepts aimed at improving the health care system for this target group were found to be dependent in no small measure on the success of the initial contact.
Adult↗
The effect of migration on black incomes: evidence from the 1940 census.
"Evidence from the 1940 [U.S.] census reveals that southern-born blacks who left the region prior to 1935 had higher incomes than non-southern born blacks. The income gap between migrants and non-migrants declined with schooling."
Black or African American↗
Modeling heart disease mortality with census tract rates and social class mixtures.
The relationship between social class and 1980 heart disease (HD) mortality in eight urban U.S. counties was examined by regressing age and sex adjusted census tract specific HD rates (N = 1211) on tract social class characteristics. The regression model indicated that lower middle class residents experienced a HD mortality rate 1.9 (95% CI = 1.3, 2.8) times the rate in the upper middle/middle class, while the working poor experienced a HD rate 4.4 (95% CI = 3.5, 5.7) times the rate in the referent class. Similar class effects were seen for both black and nonblack residents. The crude race effect (1.3 with 95% CI = 1.2, 1.4) was explainable by the concentration of blacks in the lower classes. The methods illustrate the ecologic regression of mixtures of mortality rates on mixtures of exposure in the presence of random tract effects which eliminates some of the problems associated with small denominators or zero rates in some tracts.
Coronary Disease↗
Case-control studies of cancer in Illinois farmers using data from the Illinois State Cancer Registry and the U.S. Census of Agriculture.
A series of case-control studies have been carried out to compare farmers reported to the Illinois State Cancer Registry (ISCR) with other males reported to the ISCR between 1986 and 1988. Data on the number of farms in each Illinois county producing given agricultural commodities were obtained from the United States Census of Agriculture and used as surrogate exposure indicators. Employment as a farmer was found to be associated with cancer of the eye [odds ratio (OR) = 6.49, 95% confidence interval (CI) = 1.78, 23.71], lip (OR = 4.42, 95% CI = 2.46, 7.94), prostate (OR = 1.15, 95% CI = 0.99, 1.35) and leukaemia (OR = 1.51, 95% CI = 1.01, 2.25). Wheat and soybean production were found to be positively associated with leukaemia. Hay and beef production were found to be positively associated with cancer of the prostate.
Aged↗