Analysis of impact of geographic characteristics on suicide rate and visualization of result with Geographic Information System

Oka, M.; Kubota, Takafumi; Tsubaki, Hiroe; Yamauchi, Keita

doi:10.1111/pcn.12254

Cited by 27 publications

(29 citation statements)

References 19 publications

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“…This index was created by the authors in cooperation with a map company during a previous study [22–24]. Average values were calculated for each prefecture by extracting gradient of the land directly beneath approx.…”

Section: Methodsmentioning

confidence: 99%

Relationships between Lifestyle, Living Environments, and Incidence of Hypertension in Japan (in Men): Based on Participant’s Data from the Nationwide Medical Check-Up

et al. 2016

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This study aims to investigate factors that contribute to the differences in incidence of hypertension between different regions in Japan, by accounting for not only individual lifestyles, but also their living environments. The target participants of this survey were individuals who received medical treatment for hypertension, as well as hypertension patients who have not received any treatment. The objective variable for analysis was the incidence of hypertension as data aggregated per prefecture. We used data (in men) including obesity, salt intake, vegetable intake, habitual alcohol consumption, habitual smoking, and number of steps walked per day. The variables within living environment included number of rail stations, standard/light vehicle usage, and slope of habitable land. In addition, we analyzed data for the variables related to medical environment including, participation rate in medical check-ups and number of hospitals. We performed multiple stepwise regression analyses to elucidate the correlation of these variables by using hypertension incidence as the objective variable. Hypertension incidence showed a significant negative correlation with walking and medical check-ups, and a significant positive correlation with light-vehicle usage and slope. Between the number of steps and variables related to the living environment, number of rail stations showed a significant positive correlation, while, standard- and light-vehicle usage showed significant negative correlation. Moreover, with stepwise multiple regression analysis, walking showed the strongest effect. The differences in daily walking based on living environment were associated with the disparities in the hypertension incidence in Japan.

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Section: Methodsmentioning

confidence: 99%

Relationships between Lifestyle, Living Environments, and Incidence of Hypertension in Japan (in Men): Based on Participant’s Data from the Nationwide Medical Check-Up

et al. 2016

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“…However, the results indicate that female suicide rates may be high in areas with low population density. Previous research has also shown that reduced accessibility to healthcare and social services is related to suicide [39]. Further, people living in a less densely populated area tend to suffer from depression due to poor access to medical resources [40].…”

Section: Relationship Between Community-level Social Capital Depressmentioning

confidence: 99%

Suicide Rates, Social Capital, and Depressive Symptoms among Older Adults in Japan: An Ecological Study

Nakamura

Tsuji

Nagamine

et al. 2019

IJERPH

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Depression is considered the primary risk factor for older people’s suicide. When considering suicide measures, it is necessary to clarify the relationship between depressive symptoms, social capital, and suicide rates. Therefore, we aimed to clarify the relationship between community-level social capital, depressive symptoms, and suicide rates among older people in Japan. We analyzed the data gathered from 63,026 men and 72,268 women aged 65 years and older, totaling 135,294 subjects in 81 municipalities with a population of over 100,000 participants in the 2013 Sixth Long-Term Care Needs Survey and another survey conducted by Japan Gerontological Evaluation Study (JAGES) in 2013 including the same question items as the survey in Japan. Multiple regression analysis revealed that the male suicide standardized mortality ratio (SMR) was positively correlated with depressive symptoms (B = 2.318, p = 0.002), and received emotional support (B = −2.622, p = 0.014) had a negative correlation with the male suicide SMR. In older males particularly, the received emotional support in the community was independently associated with the suicide rate. Therefore, fostering social support in a community could act as a countermeasure to suicide among older males in Japan.

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“…In our regression analysis, we considered population density and the proportion of older adults in the population as potential confounders. This was suggested by a recent study indicating a negative correlation between suicide SMR and population density (Oka, Kubota, Tsubaki, & Yamauchi, 2015). The proportion of older adults in the population was determined as the number of people aged 65 years and above divided by the total population of the municipality.…”

Section: Covariatesmentioning

confidence: 99%

Suicide and Types of Agriculture: A Time‐Series Analysis in Japan

Kanamori

Kondo

2019

Suicide & Life Threat Behav

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Objective In recent years, rural areas have reported higher suicide rates than urban areas worldwide. Although agricultural activity is a key characteristic of many rural areas, rurality may also have heterogeneous qualities based on the type of agriculture pursued. However, to date, no study has examined potential linkages between suicide rate and types of agriculture. Method In this study, we used 1983–2007 annual time‐series data of the standardized mortality ratio (SMR) of suicide and product‐specific agricultural outputs in Japanese municipalities to shed light on this phenomenon. We conducted a multilevel linear regression analysis, taking into account a hierarchical structure of the time‐series data, limiting our analysis to municipalities where agricultural land use was high. Results Our multilevel analysis showed that the animal husbandry output was positively associated with suicide SMR in both women and men, with a stronger relationship among women, whereas no association was observed in agricultural crop output. Temporal analysis showed that the association could be observed consistently throughout the period between 1983 and 2007. Conclusions This study raises the possibility that the industrial and cultural characteristics of communities that rely on animal husbandry may be associated with an increased risk of suicide.

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Analysis of impact of geographic characteristics on suicide rate and visualization of result with Geographic Information System

Cited by 27 publications

References 19 publications

Relationships between Lifestyle, Living Environments, and Incidence of Hypertension in Japan (in Men): Based on Participant’s Data from the Nationwide Medical Check-Up

Relationships between Lifestyle, Living Environments, and Incidence of Hypertension in Japan (in Men): Based on Participant’s Data from the Nationwide Medical Check-Up

Suicide Rates, Social Capital, and Depressive Symptoms among Older Adults in Japan: An Ecological Study

Suicide and Types of Agriculture: A Time‐Series Analysis in Japan

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