Myeloscopic study on lumbar spinal canal stenosis with special reference to intermittent claudication.

Twenty-five cases of lumbar spinal canal stenosis were investigated by dynamic myeloscopy to explain the pathophysiologic mechanism of intermittent claudication, one of the characteristic signs of the disorder. Myeloscopic examination revealed that, in accordance with postural alteration, the diameter of blood vessels on the cauda equinae showed significant changes in many patients in the stenosis group, but showed no changes in control group. In this series, it was suggested that the microcirculatory disturbance of vessels on cauda equinae might play an important role in the development of intermittent claudication.

[Trends in internal migration in Japan based on the preference index].

PIP: Tables of preference indexes for internal migration among the 16 regions of Japan are presented by sex for the period 1959 to 1982.^ieng

[[Marriage tables for Japanese couples: 1975-1985]].

PIP: Marriage tables are presented for Japan for the years 1975, 1980, and 1985.^ieng

[[Differentials in marriage duration-specific divorce rates]].

PIP: Divorce in Japan from 1975 to 1988 is examined, with an emphasis on marriage age and its relationship to the probability of divorce.^ieng

[Urbanization and dietary behavior: report of the field survey conducted in 1979].

PIP: The relationship between urbanization and dietary behavior in Japan is examined. The data are for 1979 and involve a comparison between a Tokyo area and an agricultural village in southern Japan.^ieng

[[Trends in fertility and policy responses in Western Europe]].

PIP: The authors review trends in fertility in Western Europe since the 1960s and government policy responses. Factors associated with the declines in fertility are the contraceptive revolution, changes in marriage patterns, changes in women's roles, and the growth of individualism. The authors note that while many governments in Western Europe specifically abstain from trying to influence fertility trends, with the significant exceptions of France and Sweden, nearly all have substantial policies in place to protect the family.^ieng

[[Natural increase and net migration in population projections by prefecture: 1990-2010]].

PIP: This study examines the relative contribution of natural increase and migration to population projections for the prefectures of Japan up to the year 2010.^ieng

[Trend analysis for interprefectural migration in Japan, 1954-1993].

"In this paper, our main aim is to examine long-term trends of Japanese interprefectural migration after the War by using a Markov migration model.... We observed dependence of in- and out-migration on the size of populations by prefecture.... Major findings based on the time-series observation of stationary distributions by year are as follows: First from [the 1950s] to 1970 migrants tended to concentrate [on] densely populated industrialized prefectures (Tokyo, Osaka and Aichi), but after that during [the 1970s] populations have redistributed to provincial prefectures. Reconcentration of population to [the] Tokyo area again occurred around [the mid-1980s, but] it ceased at the beginning of the [1990s] in accordance with economic recession.... It can be concluded that [the] recent Japanese interprefectural migration system has lost its potential power to redistribute populations." (SUMMARY IN ENG)

[Prefectural differentials in recent fertility].

PIP: An analysis of recent trends in differential fertility in Japan is presented by province. The emphasis is on marital fertility differences as measured by cumulative rather than age-specific fertility rates. Data are from the 1987 National Fertility Survey as well as the 1990 census. The main focus is on fertility in the capital city Tokyo. (SUMMARY IN ENG)^ieng

[Twinning rate and stillbirth rate of twins in Japan, 1975-1978].

PIP: The authors use the techniques of demographic analysis to examine the changes in psychiatric inpatient care in France since 1972. Factors examined include number of admissions, length of stay, causes of hospitalization, and variations by age and sex. (summary in ENG, SPA)^ieng

[Statistical analysis of mental disorders in Japan. Part 1. Mortality rates associated with mental disorders and senile and pre-senile dementia].

PIP: Data on annual changes in mortality from mental disorders are presented for Japan for the period from 1950 to 1978. Variations in mortality are examined by year, sex, and geographic region. An attempt is also made to project probable mortality from this cause up to the year 2050. (summary in ENG)^ieng

[Statistical analysis of mental disorders in Japan. Part 2. Mortality rates associated with alcoholism and alcoholic psychosis].

PIP: Trends in alcohol-related mortality in Japan are analyzed over the period 1950 to 1978 by sex, age, and region. A steady increase in mortality from alcohol-related causes is noted, as well as a correlation between the level of alcohol consumption and alcohol-related mortality by prefecture. (summary in ENG)^ieng

[[Population projections by prefectures: 1985-2025]].

PIP: The methodology used to prepare population projections for Japan by prefecture up to 2025 is described. The basic method used is the cohort approach.^ieng

Double-layered lateral meniscus: a newly found anomaly.

We report two cases of a double lateral meniscus, with one meniscus overlying another. It was characteristic that the upper accessory meniscus was connected at the posterior horn and middle segments of the lower meniscus. Symptoms in both cases disappeared after resecting the upper meniscus arthroscopically. There was no evidence of tear or other pathologic finding in the meniscus, which showed no disturbance of the fiber arrangement.

[[Population projections for Japan: 1991-2025]].

PIP: Population projections for Japan to 2025 are presented and discussed. Consideration is given to life expectancy by age and sex, and to mortality rates. Some discussion of the methodology used in the analysis is offered.^ieng

[Population projections for Japan: 1996-2100].

PIP: Population projections are presented for Japan up to the year 2100.^ieng

[[Projection of household conditions of the elderly in Japan]].

"The household condition of the elderly [in Japan]...was estimated for the years 1975, 1980, 1985 and 1990, and was projected for the years 1995, 2000, 2005 and 2010, using the population census tabulations and the future population by age and sex projected in 1992.... The population aged 65 and over belonging to a 'couple only household' (5,905 thousand) is projected to surpass the population belonging to a 'household with their child' (4,260 thousand) in 2010 for males, while the latter will be...more (6,812 thousand) than the former (5,115 thousand) for females in the same year. The elderly population aged 65 and over in one-person households is projected to increase more remarkably for males than females." (SUMMARY IN ENG)

[[Attitudes toward marriage and family among unmarried Japanese youth]].

PIP: The authors report principal findings from a survey on attitudes toward marriage and family in Japan. Data are from interviews with 9,636 unmarried men and women aged 18-49 who were interviewed in 1992. Information is provided on marriage intentions, costs and benefits of marriage, obstacles to marriage, desired marriage types (love match or arranged), attitudes toward residing with parents after marriage, friends of the opposite sex, desired number of children, and timing of first marriage. (SUMMARY IN ENG)^ieng