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1.
We used age–period–cohort (APC) analyses to describe the simultaneous effects of age, period, and cohort on cancer incidence rates in an attempt to understand the population dynamics underlying their patterns among those aged 85+. Data from the Utah Cancer Registry (UCR), the US Census, the National Center for Health Statistics (NCHS), and the National Cancer Institute's Surveillance, Epidemiology and End Results (SEER) programme were used to generate age-specific estimates of cancer incidence at ages 65–99 from 1973 to 2002 for Utah. Our results showed increasing cancer incidence rates up to the 85–89 age group followed by declines at ages 90–99 when not confounded by the separate influences of period and cohort effects. We found significant period and cohort effects, suggesting the role of environmental mechanisms in cancer incidence trends between the ages of 85 and 100.  相似文献   

2.
Elo IT 《Demography》2001,38(1):97-114
New life tables for African Americans are presented from 1935 through 1990. They are based on a historical series of vital statistics data on deaths that have been corrected for age misreporting, on reconstructed population counts that have been adjusted for census underenumeration, and on births that have been corrected for underregistration. The new life tables show rapid mortality declines for both African American males and females from 1935 to 1950, and relatively steady reductions thereafter for females. The smaller declines in male mortality in young adulthood and middle age since the 1950s have led to exceptionally high ratios of male to female mortality at these ages. Corrections for census undercounts lead to higher values of life expectancy than in official life tables, but to less improvement over time. Official estimates of life expectancy at age 65 appear to be about 10% too high around 1940 but only about 1.5% too high in the late 1980s.  相似文献   

3.
Bringing together women and family in quality perspective bring about interesting discussions in this paper. By integrating previous studies and considering expert opinions, we determinate the variables and dimensions with respect to women’s existence regarding their roles both in the family and at work. Many activities carried out by women represent the consumer aspects of their role. Women undertake these activities to fulfill their needs, which can be classified in the order of preference using Maslow’s Hierarchy of Need. Women success can be measured based on their ability to perform their roles successfully. We identify women’s performance by using quality approach of Personal Quality Maintenance (PQM), which is widely applied in many organizations in order to maintain the service delivery, which meets the customer satisfaction. The effort to enhance women’s satisfaction for their success in playing the multirole in the family and at work is our main consideration. This study may contribute a new point of view regarding for the women’s welfare and existence.  相似文献   

4.
This paper examines how individual characteristics and structural factors have changed in determining Jewish internal migration in the U.S. between 1985–1990 and 1995–2000. Multinomial logistic regression analysis of the 1990 and 2000 National Jewish Population Surveys shows that socio-demographic characteristics have both increased their power to explain variation in 5-year migration and have become more similar for intra- and interstate migration. Further analysis added migration status at the beginning-of-period, state context of residence characteristics, and ethnic concentration to the explanatory variables. Results from logistic regression analysis, which was limited to interstate mobility, were very much in accordance with the observations of the single-level analysis of the socio-demographic variables. Additional findings suggest that previous mobility increases subsequent interstate migration; that per capita income does not have a meaningful effect on migration; that unemployment encourages migration (yet later this relationship turned negative); and that warm climate deters migration. The importance of ethnic concentration has weakened over time albeit maintained statistically significant. Finally, when the two surveys were integrated into one data set, “time” enhances the tendency of Jews to migrate. The results are discussed in the context of ethnic diversity in contemporary America.
Uzi RebhunEmail:
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5.
Incompleteness in the reporting of illegitimate births in the U.S. vital registration system due to the consistent nonparticipation of a number of large States has left data published by the National Center for Health Statistics open to considerable criticism. Utilizing retrospective marriage and fertility data from the June 1978 Current Population Survey, a national probability sample of 54,000 interviewed households, a time series on teenage illegitimacy for first births is constructed that permits an evaluation of similar Vital Statistics data on teenage illegitimacy since the 1940s. Although there are some indications of a slight underreporting of white illegitimate first births by Vital Statistics during the 1940s and early 1950s, the overall comparison produces a general consensus between the two data sources on the incidence of illegitimacy among both white and nonwhite teenagers for the period 1940–44 to 1970–74.  相似文献   

6.
We used UK Family Expenditure Surveys to analyse the relationship between savings and age structure. We address two key problems: the sample selection bias when data refer to households and not individuals, and the treatment of pension income when drawing inferences from individuals' savings–age profiles about the relationship between an economy's savings and age structure. Our principal findings are that household data exaggerate savings rates of young adults and the elderly whilst underestimating those of 45- to 60-year-olds, and individual saving rates follow more closely the ‘hump shape’ of the life-cycle model, although the savings rates of the elderly remain positive for some ages.
Nigel W. DuckEmail:
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7.
Individual differences in diurnal preferences and circadian rhythms are viewed as an interesting dimension of human personality. Previous research has examined various psychological correlates of diurnal preference. Evening types reported psychological and psychosomatic disturbances more frequently and intensively than morning types and morning types have a healthier lifestyle than evening types. Depression was also related to eveningness as were bulimic behaviour and seasonal affected disorders (SAD). Given these studies, one would expect a positive relationship between satisfaction with life or happiness (general well-being; Diener et al. (J Pers Assess 49:71–75, 1985)) and morningness. There was a significant positive correlation between morningness and satisfaction with life (r = 0.177; p = 0.023; N = 164).  相似文献   

8.
It is widely believed that happiness is strongly correlated with wealth and income, but according to the happiness–income paradox, this is not always true. The paradox predicates that there is a strong positive correlation between income and happiness nationally, but the correlation is essentially absent in international comparisons, or in a long-term longitudinal comparison. This paradox has been widely debated among economists and the controversy has persisted for several decades. In this article, the happiness–income paradox is explained in terms of ecological correlation due to spatial aggregation or data-grouping, change of reference classes, and confounding variables. The controversy is resolved when ecological correlations and third-variable effects are accounted for. At the individual level, happiness and income are correlated positively, but not as strongly as many believe. In international comparisons, happiness and income are, in general, quite strongly correlated as well, contrary to what Easterlin (Nations and households in economic growth: essays in honor of Moses Abramovitz, Academic Press, New York, 1974) claimed and similar to what others have found, but for different reasons. Long-term comparison is also related to ecological correlation, but it is related to the change of reference classes as well.  相似文献   

9.
We use data from the nationally representative 1997 Demographic and Reproductive Health Survey to examine use of maternity services in rural China. The data indicate that roughly 60 per cent of women had at least one prenatal visit, while 40 per cent had a professionally assisted birth over the period 1988–97. Despite China's shift from a more socialist to a more privatized health care system, use of maternity services increased over this period. These increases are consistent with the push toward integration of reproductive health into family planning that emerged after the 1994 International Conference on Population and Development and the 1995 Fourth World Women's Conference held in Beijing. At the same time, we find indirect evidence that the target-based population policy may well have exerted downward pressure on use of maternity services; differences by parity are marked and multilevel models predicting use of maternity services indicate underdispersion at the individual level.  相似文献   

10.
11.
Little is known about past and present mortality in Vietnam, as the first official data on mortality have only recently become available from censuses taken in 1979 and 1989. Using these data, I estimate Vietnamese mortality during the intercensal period using two techniques that rely on age-specific growth rates from two successive age distributions. Intercensal emigration and differential completeness of census enumeration associated with massive outflows of refugees in the wake of the Vietnam War; population-redistribution policies, and a highly mobile population represent important sources of bias for the estimation of intercensal mortality. I incorporate several strategies to minimize bias from these sources and to select the method that is least sensitive to errors associated with them. Life expectancy at birth estimated for the 1979–1989 intercensal period is 61.4 years for males and 63.2 for females. These results suggest a trend of declining mortality between the 1970s and the 1980s and add solid empirical evidence to the debate over whether mortality in Vietnam has been deteriorating or improving.  相似文献   

12.
In the 1950s and 1960s there was an unprecedented marriage boom in the United States. This was followed in the 1970s by a marriage bust. Some argue that both phenomena are cohort effects, while others argue that they are period effects. The study reported here tested the major period and cohort theories of the marriage boom and bust, by estimating an age–period–cohort model of first marriage for the years 1925–79 using census microdata. The results of the analysis indicate that the marriage boom was mostly a period effect, although there were also cohort influences. More specifically, the hypothesis that the marriage boom was mostly a response to rising wages is shown to be consistent with the data. However, much of the marriage bust can be accounted for by unidentified cohort influences, at least until 1980.  相似文献   

13.
The economic reforms initiated in India in 1991 have brought about visible upliftment of economic conditions of the country. This paper examines if the economic process is associated with an enhancement of India’s social development in equal measure in the reform decade of nineties. Ray (1989) considered thirteen social indicators of India and constructed the country’s social development index (SDI) as a certain weighted average of the selected indicators, for the years between 1950–51 and 1975–76. The present work broadly follows Ray (1989) in tracking the social development in the decade of economic reforms from 1990–91 to 1999–2000. The movement of SDI in nineties has been compared with the movements of India’s per capita income and plan expenditure on the social sector. The results show that though there has been growth in the social sector, it is not by far quite encouraging and perhaps more needs to be done in the social sector. The views expressed in the article are those of the author and not of the institution he serves.  相似文献   

14.
Larry Blackwood 《Demography》1981,18(2):173-179
Fertility rates for Alaska Natives based on officially registered births have shown considerable change since 1950, reflecting the increasing incorporation of this group into the dominant American culture. Their fertility experience has in many regards been similar to that of developing countries during the process of modernization. A gradual rise in fertility prior to 1962 was most likely the result of increased fecundity due to declining breast feeding. The rapid decline after that time is seen as a response to increasing incentives for fertility control. The decline was facilitated by the beginning of family planning programs in 1965.  相似文献   

15.
This paper discusses the mixed perceptions toward the Tanzania–China relationship since the dawn of globalization. The focus among other things is on the increase of foreign direct investment (FDI) flow to Tanzania in general and from China in particular. It aims to show how the political and economic cooperation between two countries has been fairing and how globalization forces are influencing cooperation between Tanzania and China. Among other aspects, it discusses major areas of cooperation and how these areas have been changing over time. Additionally, opportunities and challenges of this cooperation not only in the context of economy, but also socially and culturally are explored and discussed. Information presented in this paper is based on a pilot qualitative study conducted in Dar es Salaam, Tanzania’s major commercial center. The article concludes that involvement of China in Africa in general causes mixed feelings within and outside Africa. However, observers from outside Africa seem to be more skeptical and concerned than those from within Africa are.  相似文献   

16.
Little is known about how adolescents cope with minority stressors related to sexual orientation. This study examined 245 lesbian, gay, and bisexual (LGB) young adult’s (ages 21–25) retrospective reports of coping in response to LGB minority stress during adolescence (ages 13–19) to test the reliability and validity of a measure of minority stress coping. Further, the study examined associations between LGB minority stress coping and young adult psychosocial adjustment and high school attainment. Validation and reliability was found for three minority stress coping strategies: LGB-specific strategies (e.g., involvement with LGBT organizations), alternative-seeking strategies (e.g., finding new friends), and cognitive strategies (e.g., imagining a better future). LGB-specific strategies were associated with better psychosocial adjustment and greater likelihood of high school attainment in young adulthood, whereas alternative-seeking and cognitive-based strategies were associated with poorer adjustment and less likelihood of high school attainment.  相似文献   

17.
18.
This study examines issues related to the fertility of graduate students over time. First, it examines changes in motherhood rates between 1970 and 2000 among women aged 20–49 who are enrolled in graduate school, both by themselves and relative to prevailing trends among women not enrolled in graduate school, and to other college educated women. Overall, women enrolled in graduate school are increasingly likely to be mothers of young children, and are increasingly similar to non-graduate students. Second, it examines the timing of these births, and finds that almost half of births occur while women are enrolled in graduate school. Third, a brief review of current maternity leave policies and childcare options available to graduate students is presented. Results are discussed in terms of institutional changes within academia, changes between cohorts that attended graduate school in these decades, and the policy needs of graduate student mothers.
Arielle KuperbergEmail:
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19.
Individuals’ moving behavior (e.g., residential mobility) is an emerging topic in many scientific disciplines. One specific aspect is the distance between parents and their children (i.e., parent–child proximity). Although determinants and moderators of parent–child proximity can be manifold, we concentrated on the psychological concepts self-esteem and affect by assessing explicit (i.e., conscious) and implicit (i.e., automatic) aspects. Besides well-known correlates of moving behavior (e.g., education), we found that participants (N = 1,765; cross-sectional design) with high positive explicit affect and low negative implicit affect moved further away from their parents’ homes. Therefore, parent–child proximity may not be only based on fundamental sociocultural and socioeconomic needs (e.g., income, family bonds), but also on automatic psychological aspects, such as implicit affect.  相似文献   

20.
Black–white mortality disparities remain sizable in the United States. In this study, we use the concept of avoidable/amenable mortality to estimate cause-of-death contributions to the difference in life expectancy between whites and blacks by gender in the United States in 1980, 1993, and 2007. We begin with a review of the concept of “avoidable mortality” and results of prior studies using this cause-of-death classification. We then present the results of our empirical analyses. We classified causes of death as amenable to medical care, sensitive to public health policies and health behaviors, ischemic heart disease, suicide, HIV/AIDS, and all other causes combined. We used vital statistics data on deaths and Census Bureau population estimates and standard demographic decomposition techniques. In 2007, causes of death amenable to medical care continued to account for close to 2 years of the racial difference in life expectancy among men (2.08) and women (1.85). Causes amenable to public health interventions made a larger contribution to the racial difference in life expectancy among men (1.17 years) than women (0.08 years). The contribution of HIV/AIDS substantially widened the racial difference among both men (1.08 years) and women (0.42 years) in 1993, but its contribution declined over time. Despite progress observed over the time period studied, a substantial portion of black–white disparities in mortality could be reduced given more equitable access to medical care and health interventions.  相似文献   

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