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Biomedical subjects

Takehito Takano

Publications and source records attributed to Takehito Takano.

6 recordsLinked to original sources

Increased excess deaths in urban areas: quantification of geographical variation in mortality in Japan, 1973-1998.

To quantify the magnitude of geographical health inequality by sex and age group, and to observe the change in regional distribution of health disadvantage, this study estimated excess deaths attributable to the mortality variation among municipalities across Japan from 1973 through 1998. The municipalities (N = 3340 in 1995) were divided into quintiles according to standardized mortality ratio (SMR). Using the mortality of the lowest SMR quintile as the standard, the number of excess deaths (ED) and its ratio to observed deaths (EDR) were estimated by sex, age group (total population and under 65-year population) and regional block in 1973-1977, 1978-1982, 1983-1987, 1988-1992 and 1993-1998. Total annual ED in 1993-1998 was estimated as 47,124 for males and 46,562 for females, representing EDR of 9.9 and 11.6%, respectively. The under 65-year population had a higher EDR than the total population. Rural regions showed a marked decrease in EDR in contrast to the increase in urban regions over time. The present study suggests that the reduction of a large number of deaths, especially premature deaths, is expected by elimination of geographical health inequality, and that health policies for urban residents are prioritized.

Female↗

Visual localisation of community health needs to rational decision-making in public health services.

The objectives were to visualise the locations of community health needs and to develop a community health needs assessment geographic information system (GIS) for rational decision-making in public health services. We compiled census data, digital data of basic planning maps, digital data of topographic maps, contents of registers of medical and welfare facilities, and statistics of establishments into a geographical database; visualised geographical distributions of specific community health needs by integrating sets of indicators to reflect individual needs; and quantified their clustering by the nearest neighbour method. The database aggregated 3400 items of demographic, life and environmental factors. Thematic maps and clustering values showed different patterns of geographical distribution of the individual community needs. Means to match needs with services in smaller geographical units were discussed. This GIS will support appropriate resource allocation, intersectoral collaboration and greater transparency in planning and implementing services, by visualising locations of community health needs.

Adolescent↗

Dioxins released from incineration plants and mortality from major diseases: an analysis of statistical data by municipalities.

The aim of this study is to examine the relation between mortality and the existence of incineration plants and dioxin released from the plants in 590 municipalities across Japan. The concentration of dioxins in emissions from incinerators, the amount of dioxins per population, the cumulative amount of dioxins, and the cumulative amount per land area were used as dioxin-related municipal indices. Age-adjusted mortality rates from all causes and five major disease categories by municipality in 1995 were used as health indices. The relation was examined using t-test, analysis of covariance (ANCOVA), correlation coefficients and multiple linear regression analysis, considering the effects of cities' socioeconomic conditions. Although municipalities with plants had significantly higher mortality from female stroke and lower mortality from male cancer at all site and lung than municipalities without plants, these differences were not significant in ANCOVA with socioeconomic indicators. The significant relation between mortality and dioxin indices in correlation coefficient was ruled out when the socioeconomic conditions were adjusted in multiple regression analysis. This study did not show the statistical relation between increased mortality from major causes and the existence of incineration plants and dioxins from the plants at the municipal level.

Age Factors↗

Age-adjusted mortality and its association to variations in urban conditions in Shanghai.

The objective of this study was to explore the association between health and urbanization in a megacity, Shanghai, by calculating the age-adjusted mortality ratio by ward-unit of Shanghai and by examining relationships between mortalities and urban indicators. Crude mortality rates and age-adjusted mortality ratios by ward-unit were calculated. Demographic, residential environment, healthcare, and socioeconomic indicators were formulated for each of the ward-units between 1995 and 1998. Correlation and Poisson regression analyses were performed to examine the association between urban indicators and mortalities. The crude mortality rate by ward-unit in 1997 varied from 6.3 to 9.4 deaths per 1000 population. The age-adjusted mortality ratio in 1997 by ward-units as reference to the average mortality of urban China varied from 57.8 to 113.3 within Shanghai. Age-adjusted mortalities were inversely related with indicators of a larger floor space of dwellings per population, a larger proportion of parks, gardens, and green areas to total land area; a greater number of health professionals per population; and a greater number of employees in retail business per population. Spacious living showed independent association to a higher standard of community health in Shanghai (P < 0.05). Consequences of health policy and the developments of urban infrastructural resources from the viewpoint of the Healthy Cities concept were discussed.

Age Factors↗

A combination of an extrapolation method and a benchmark method to develop quantitative health targets for Japan.

The aim of the present study was to propose a methodology to formulate quantitative health targets which combined an extrapolation method and a benchmark method, and to estimate the targets for mortality rates (Mb) for selected causes of death by the year 2010 in Japan. Using the extrapolation method, based on the nationwide Mt from 1988 to 1997, the Mt in 2010 was predicted using a regression model. Using the benchmark method, the paired-mean of the age-adjusted mortality rates (Mts) of the top five prefectures among 47 prefectures was calculated as the benchmark. Combining the predicted mortality and the benchmark mortality, year 2010 targets were determined. As a results year 2010 targets as percentages compared with Mt in 1997 for cancer at all sites, stomach cancer, lung cancer, colo-rectal cancer, liver cancer and stroke were estimated to be 93, 52, 94, 102, 53 and 52% for males, and 84, 43, 86, 82, 60, and 45%, for females, respectively. The methodology presented in this article could be used as a standard procedure to formulate realistic quantified health targets, which can be adopted to develop health policies in nations, regions and communities.

Benchmarking↗

[Healthy Cities projects].

This is a review article on "Healthy Cities". The Healthy Cities programme has been developed by the World Health Organization (WHO) to tackle urban health and environmental issues in a broad way. It is a kind of comprehensive policy package to carry out individual projects and activities effectively and efficiently. Its key aspects include healthy public policy, vision sharing, high political commitment, establishment of structural organization, strategic health planning, intersectoral collaboration, community participation, setting approach, development of supportive environment for health, formation of city health profile, national and international networking, participatory research, periodic monitoring and evaluation, and mechanisms for sustainability of projects. The present paper covered the Healthy Cities concept and approaches, rapid urbanization in the world, developments of WHO Healthy Cities, Healthy Cities developments in the Western Pacific Region, the health promotion viewpoint, and roles of research.

Health Promotion↗