Neighborhood farm density, types of agriculture, and depressive symptoms among older farmers: a cross-sectional study

Abstract Background Farmers may have an increased risk for poor mental health. In connection with this, factors specific to the neighborhood environment such as farm density and the type of agriculture, might be important for mental wellbeing. In this study we aimed to clarify the cross-level intera...

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Main Authors: Mariko Kanamori, Masamichi Hanazato, Katsunori Kondo, Andrew Stickley, Naoki Kondo
Format: Article
Language:English
Published: BMC 2021-03-01
Series:BMC Public Health
Subjects:
Online Access:https://doi.org/10.1186/s12889-021-10469-6
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author Mariko Kanamori
Masamichi Hanazato
Katsunori Kondo
Andrew Stickley
Naoki Kondo
author_facet Mariko Kanamori
Masamichi Hanazato
Katsunori Kondo
Andrew Stickley
Naoki Kondo
author_sort Mariko Kanamori
collection DOAJ
description Abstract Background Farmers may have an increased risk for poor mental health. In connection with this, factors specific to the neighborhood environment such as farm density and the type of agriculture, might be important for mental wellbeing. In this study we aimed to clarify the cross-level interaction on depressive symptoms between farm density at the neighborhood level by type of agriculture and the longest occupation of individuals (farmer or non-farmer). Methods Data came from the 2016 wave of the Japan Gerontological Evaluation Study (JAGES) that were linked to governmental agricultural data. Information was analyzed from 147,549 respondents aged 65 years or older, residing in 1024 neighborhoods in 39 municipalities. We calculated farm (crop or animal husbandry) density at the neighborhood level, dividing the number of agricultural management entities by the population. Three-level (individual, neighborhood, and municipality) Poisson regression analysis was used to calculate the prevalence rate ratios of depressive symptoms. Results The prevalence of depressive symptoms was higher among individuals whose longest occupation was farmer compared to non-farmer. The estimated probability of depressive symptoms by a cross-level interaction analysis showed that among farmers of both genders, those who were residing in neighborhoods where the farm density was low had a higher prevalence of depressive symptoms, regardless of the type of agriculture. The slope of the relationship between depressive symptoms and animal husbandry farm density varied by occupation, with a higher prevalence of depressive symptoms observed in male farmers compared to male non-farmers. Conclusions The high prevalence of depressive symptoms among farmers in neighborhoods with a low farm density may reflect a scarcity of formal and informal social support in such communities. The health effects of the neighborhood environment on farmers, such as farm density, which may vary by the type of agriculture, should be further researched.
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spelling doaj.art-58c2ba3e66c7481d93707f07332663472022-12-21T22:41:28ZengBMCBMC Public Health1471-24582021-03-0121111110.1186/s12889-021-10469-6Neighborhood farm density, types of agriculture, and depressive symptoms among older farmers: a cross-sectional studyMariko Kanamori0Masamichi Hanazato1Katsunori Kondo2Andrew Stickley3Naoki Kondo4Department of Health and Social Behavior, Faculty of Medicine, The University of TokyoDepartment of Social Preventive Medical Sciences, Center for Preventive Medical Sciences, Chiba UniversityDepartment of Social Preventive Medical Sciences, Center for Preventive Medical Sciences, Chiba UniversityDepartment of Social Epidemiology, Graduate School of MedicineDepartment of Social Epidemiology, Graduate School of MedicineAbstract Background Farmers may have an increased risk for poor mental health. In connection with this, factors specific to the neighborhood environment such as farm density and the type of agriculture, might be important for mental wellbeing. In this study we aimed to clarify the cross-level interaction on depressive symptoms between farm density at the neighborhood level by type of agriculture and the longest occupation of individuals (farmer or non-farmer). Methods Data came from the 2016 wave of the Japan Gerontological Evaluation Study (JAGES) that were linked to governmental agricultural data. Information was analyzed from 147,549 respondents aged 65 years or older, residing in 1024 neighborhoods in 39 municipalities. We calculated farm (crop or animal husbandry) density at the neighborhood level, dividing the number of agricultural management entities by the population. Three-level (individual, neighborhood, and municipality) Poisson regression analysis was used to calculate the prevalence rate ratios of depressive symptoms. Results The prevalence of depressive symptoms was higher among individuals whose longest occupation was farmer compared to non-farmer. The estimated probability of depressive symptoms by a cross-level interaction analysis showed that among farmers of both genders, those who were residing in neighborhoods where the farm density was low had a higher prevalence of depressive symptoms, regardless of the type of agriculture. The slope of the relationship between depressive symptoms and animal husbandry farm density varied by occupation, with a higher prevalence of depressive symptoms observed in male farmers compared to male non-farmers. Conclusions The high prevalence of depressive symptoms among farmers in neighborhoods with a low farm density may reflect a scarcity of formal and informal social support in such communities. The health effects of the neighborhood environment on farmers, such as farm density, which may vary by the type of agriculture, should be further researched.https://doi.org/10.1186/s12889-021-10469-6Farm densityDepressionFarmerNeighborhoodJapanOlder adults
spellingShingle Mariko Kanamori
Masamichi Hanazato
Katsunori Kondo
Andrew Stickley
Naoki Kondo
Neighborhood farm density, types of agriculture, and depressive symptoms among older farmers: a cross-sectional study
BMC Public Health
Farm density
Depression
Farmer
Neighborhood
Japan
Older adults
title Neighborhood farm density, types of agriculture, and depressive symptoms among older farmers: a cross-sectional study
title_full Neighborhood farm density, types of agriculture, and depressive symptoms among older farmers: a cross-sectional study
title_fullStr Neighborhood farm density, types of agriculture, and depressive symptoms among older farmers: a cross-sectional study
title_full_unstemmed Neighborhood farm density, types of agriculture, and depressive symptoms among older farmers: a cross-sectional study
title_short Neighborhood farm density, types of agriculture, and depressive symptoms among older farmers: a cross-sectional study
title_sort neighborhood farm density types of agriculture and depressive symptoms among older farmers a cross sectional study
topic Farm density
Depression
Farmer
Neighborhood
Japan
Older adults
url https://doi.org/10.1186/s12889-021-10469-6
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AT katsunorikondo neighborhoodfarmdensitytypesofagricultureanddepressivesymptomsamongolderfarmersacrosssectionalstudy
AT andrewstickley neighborhoodfarmdensitytypesofagricultureanddepressivesymptomsamongolderfarmersacrosssectionalstudy
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