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Biomedical subjects

I T Elo

Publications and source records attributed to I T Elo.

12 recordsLinked to original sources
PubMed2001

New African American life tables from 1935-1940 to 1985-1990.

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.

Adolescent↗
PubMed1999

New insights into the Far Eastern pattern of mortality.

Some of the highest levels of excess mortality of males found anywhere in the world were present in several Far Eastern populations during the 1960s and 1970s but have progressively disappeared since that time. This study uses cause-of-death data to determine the diseases responsible for the existence and attenuation of these sex differences in Hong Kong, Singapore, and Taiwan. The results indicate that respiratory tuberculosis is the single most important underlying cause of the existence and attenuation of the pattern, that the role of liver diseases is not clear cut, and that other causes (such as cardiovascular diseases) are also important. A review of numerous risk factors yields no compelling reason why these populations experienced such large sex differences in mortality. However, it seems likely that public health and biomedical improvements (particularly those related to the reduction in mortality from tuberculosis) played a critical role in the attenuation of the Far Eastern mortality pattern.

Cause of Death↗
PubMed1998

Reconstructing the size of the African American population by age and sex, 1930-1990.

We estimate the size of the African American population in five-year age groups at census dates from 1930 to 1990 using a three-part strategy. For cohorts born after 1935, we follow the U.S. Census Bureau in using classical demographic analysis. To estimate the size of cohorts born before 1895, we use extinct-generation estimates. For remaining cohorts, we implement an age/period/cohort model of census counts. All approaches are applied to a data set in which the age distribution of deaths has been corrected for age misreporting. Results provide strong confirmation of the basic validity of Census Bureau estimates of census undercounts for African Americans while extending estimates to new cohorts and periods. Our estimates are less consistent with an historical series prepared by Coale and Rives (1973).

Adolescent↗
PubMed1996

Educational differentials in mortality: United States, 1979-85.

The paper examines educational differentials in adult mortality in the United States within a multivariate framework using data from the National Longitudinal Mortality Survey (NLMS). As a preliminary step we compare the magnitude of educational mortality differentials in the United States to those documented in Europe. At ages 35-54, the proportionate reductions in mortality for each one year increase in schooling are similar in the United States to those documented in Europe. The analyses further reveal significant educational differentials in U.S. mortality among both men and women in the early 1980s. Differentials are larger for men and for working ages than for women and persons age 65 and above. These differentials persist but are reduced in magnitude when controls for income, marital status and current place of residence are introduced.

Adult↗
PubMed1996

African-American mortality at older ages: results of a matching study.

In this paper we investigate the quality of age reporting on death certificates of elderly African-Americans. We link a sample of death certificates of persons age 65+ in 1985 to records for the same individuals in U.S. censuses of 1900, 1910, and 1920 and to records of the Social Security Administration. The ages at death reported on death certificates are too young on average. Errors are greater for women than for men. Despite systematic under-reporting of age at death, too many deaths are registered at ages 95+. This excess reflects an age distribution of deaths that declines steeply with age, so that the base for upward transfers into an age category is much larger than the base for the transfers downward and out. When corrected ages at death are used to estimate age-specific death rates, African-American mortality rates increase substantially above age 85 and the racial "crossover" in mortality disappears. Uncertainty about white rates at ages 95+, however, prevents a decisive racial comparison at the very oldest ages.

Black or African American↗
PubMed1995

Are educational differentials in adult mortality increasing in the United States?

Two recent studies have compared the size of educational mortality differentials among adults in the 1980s to estimates for 1960. Both studies have concluded that educational differentials have increased for males. One study finds a similar increase for females. We reconsider this question by introducing a data source that is better suited to estimating recent differentials than either of the two that have been employed. We also evaluate the quality of the 1960 baseline estimates and introduce broader measures of inequality. We conclude that educational inequalities have widened for males but contracted for working-age females. For both sexes, inequality trends are more adverse for persons aged 65+ than for persons aged 25-64. The role of national health insurance in shaping these trends is briefly considered.

Adult↗
PubMed1994

Estimating African-American mortality from inaccurate data.

This paper evaluates the quality of vital statistics and census data for estimating African-American mortality over a period of six decades. The authors employ intercensal cohort comparisons and extinct generation estimates to demonstrate that conventionally constructed African-American death rates may be seriously flawed as early as age 50. Using the crude death rate at ages 50+ for 1978-1982 in conjunction with estimated growth rates and two model life table systems, the authors estimate black age-specific death rates in 1978-1982. These results suggest that if a racial crossover in death rates occurs, the age pattern of mortality among African-Americans must be far outside the range observed in populations with more accurate data.

Adolescent↗
PubMed1992

Utilization of maternal health-care services in Peru: the role of women's education.

This article explores the hypothesis that formal education of women influences the use of maternal health-care services in Peru, net of the mother's childhood place of residence, household socioeconomic status and access to health-care services. The findings are consistent with the hypothesis; both cross-sectional and fixed-effects logit models yield quantitatively important and statistically reliable estimates of the positive effect of maternal schooling on the use of prenatal care and delivery assistance. In addition, large differentials were found in the utilization of maternal health-care services by place of residence, suggesting that much greater efforts on the part of the government are required if modern maternal health-care services are to reach women in rural areas.

Adult↗
PubMed1992

Effects of early-life conditions on adult mortality: a review.

"This paper considers the effects of health conditions in childhood on an individual's mortality risks as an adult. It examines epidemiologic evidence on some of the major mechanisms expected to create a linkage between childhood and adult mortality and reviews demographic and epidemiologic studies for evidence of the hypothesized linkages....Many empirical studies support the notion that childhood conditions play a major role in adult mortality, but only in the case of respiratory tuberculosis has the demographic importance of a specific mechanism been established by cohort studies. One's date and place of birth also appear to be persistently associated with risks of adult death in a wide variety of circumstances. An individual's height, perhaps the single best indicator of nutritional and disease environment in childhood, has recently been linked to adult mortality, especially from cardiovascular diseases. Further research is needed, however, before causal mechanisms can be identified."

Adult↗
PubMedDate not supplied

Changes in breastfeeding initiation and duration in Peru, 1977-1986.

Both breastfeeding initiation and duration increased in Peru during 1977-86. Although one would have expected that the average incidence and duration of breastfeeding would have declined as a result of changes in population characteristics, the potential for an overall decline was more than overcome by changes in behavior. A net increase in initiation and duration is shown for all subgroups of interest. The largest absolute increases are documented for children who, in 1977, were the least likely to be breastfed and who were breastfed for the shortest durations.

Adolescent↗
PubMedDate not supplied

Cause-specific mortality among older African-Americans: correlates and consequences of age misreporting.

This paper examines the quality of age reporting on death certificates of elderly African-Americans by major causes of death. We utilize a sample of death certificates linked to early census records and to Social Security Administration records to establish a "true" age at death. We then examine the patterns, predictors, and consequences of age misreporting for major causes of death. We find a pattern of greater age misreporting among females, identify educational background as a key predictor of accurate age reporting, and show that mortality crossovers are eliminated for most causes of death when more accurate age data are used.

Black or African American↗