Effects of Daily Consumption of Soy Products on Basic/Instrumental Activities of Daily Living in Community-Dwelling Japanese Women Aged 75 Years and Older: A 4-Year Cohort Study

Introduction: Since soy isoflavones compensate for age-related estrogen reduction, adequate intake of soy products may prevent the decline in activities of daily living (ADL) due to estrogen reduction in women. However, it is unclear whether regular soy product intake prevents ADL decline. This stud...

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Main Authors: Narumi Kojima, Miji Kim, Kyoko Saito, Yuko Yoshida, Hirohiko Hirano, Shuichi Obuchi, Hiroyuki Shimada, Takao Suzuki, Hajime Iwasa, Hunkyung Kim
Format: Article
Language:English
Published: Mary Ann Liebert 2023-05-01
Series:Women's Health Reports
Subjects:
Online Access:https://www.liebertpub.com/doi/full/10.1089/WHR.2022.0076
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author Narumi Kojima
Miji Kim
Kyoko Saito
Yuko Yoshida
Hirohiko Hirano
Shuichi Obuchi
Hiroyuki Shimada
Takao Suzuki
Hajime Iwasa
Hunkyung Kim
author_facet Narumi Kojima
Miji Kim
Kyoko Saito
Yuko Yoshida
Hirohiko Hirano
Shuichi Obuchi
Hiroyuki Shimada
Takao Suzuki
Hajime Iwasa
Hunkyung Kim
author_sort Narumi Kojima
collection DOAJ
description Introduction: Since soy isoflavones compensate for age-related estrogen reduction, adequate intake of soy products may prevent the decline in activities of daily living (ADL) due to estrogen reduction in women. However, it is unclear whether regular soy product intake prevents ADL decline. This study examined the effects of soy product consumption on basic/instrumental ADL (BADL/IADL) in Japanese women 75 years or older for 4 years. Materials and Methods: The subject population consisted of 1289 women aged 75 years or older living in Tokyo who underwent private health examinations in 2008. For 1114 (or 1042) participants without baseline BADL (or IADL) disability, we examined the association between baseline soy product consumption frequency and the BADL (or IADL) disabilities 4 years later using logistic regression analyses. The models were adjusted for baseline age, or further for dietary variety for food groups other than soy products, exercise and sport participation, smoking, pre-existing disease number, and body mass index. Results: Regardless of adjustment for potential confounding factors, less frequent soy product consumption was associated with higher BADL or IADL disability incidence. In the fully adjusted models, the trend toward a higher incidence of disabilities with less frequent soy product consumption was statistically significant for both BADL (p?=?0.001) and IADL (p?=?0.007). Conclusions: Those who consumed soy products more frequently at baseline were less likely to develop BADL and IADL disabilities after 4 years than those who did not. The results show that daily soy product consumption may prevent functional ADL decline in older Japanese women.
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spelling doaj.art-e71342d212f14cac888c8c53fe2e55c02024-01-26T06:02:38ZengMary Ann LiebertWomen's Health Reports2688-48442023-05-014123224010.1089/WHR.2022.0076Effects of Daily Consumption of Soy Products on Basic/Instrumental Activities of Daily Living in Community-Dwelling Japanese Women Aged 75 Years and Older: A 4-Year Cohort StudyNarumi KojimaMiji KimKyoko SaitoYuko YoshidaHirohiko HiranoShuichi ObuchiHiroyuki ShimadaTakao SuzukiHajime IwasaHunkyung KimIntroduction: Since soy isoflavones compensate for age-related estrogen reduction, adequate intake of soy products may prevent the decline in activities of daily living (ADL) due to estrogen reduction in women. However, it is unclear whether regular soy product intake prevents ADL decline. This study examined the effects of soy product consumption on basic/instrumental ADL (BADL/IADL) in Japanese women 75 years or older for 4 years. Materials and Methods: The subject population consisted of 1289 women aged 75 years or older living in Tokyo who underwent private health examinations in 2008. For 1114 (or 1042) participants without baseline BADL (or IADL) disability, we examined the association between baseline soy product consumption frequency and the BADL (or IADL) disabilities 4 years later using logistic regression analyses. The models were adjusted for baseline age, or further for dietary variety for food groups other than soy products, exercise and sport participation, smoking, pre-existing disease number, and body mass index. Results: Regardless of adjustment for potential confounding factors, less frequent soy product consumption was associated with higher BADL or IADL disability incidence. In the fully adjusted models, the trend toward a higher incidence of disabilities with less frequent soy product consumption was statistically significant for both BADL (p?=?0.001) and IADL (p?=?0.007). Conclusions: Those who consumed soy products more frequently at baseline were less likely to develop BADL and IADL disabilities after 4 years than those who did not. The results show that daily soy product consumption may prevent functional ADL decline in older Japanese women.https://www.liebertpub.com/doi/full/10.1089/WHR.2022.0076basic activities of daily livinginstrumental activities of daily livingisoflavonessoy products,
spellingShingle Narumi Kojima
Miji Kim
Kyoko Saito
Yuko Yoshida
Hirohiko Hirano
Shuichi Obuchi
Hiroyuki Shimada
Takao Suzuki
Hajime Iwasa
Hunkyung Kim
Effects of Daily Consumption of Soy Products on Basic/Instrumental Activities of Daily Living in Community-Dwelling Japanese Women Aged 75 Years and Older: A 4-Year Cohort Study
Women's Health Reports
basic activities of daily living
instrumental activities of daily living
isoflavones
soy products,
title Effects of Daily Consumption of Soy Products on Basic/Instrumental Activities of Daily Living in Community-Dwelling Japanese Women Aged 75 Years and Older: A 4-Year Cohort Study
title_full Effects of Daily Consumption of Soy Products on Basic/Instrumental Activities of Daily Living in Community-Dwelling Japanese Women Aged 75 Years and Older: A 4-Year Cohort Study
title_fullStr Effects of Daily Consumption of Soy Products on Basic/Instrumental Activities of Daily Living in Community-Dwelling Japanese Women Aged 75 Years and Older: A 4-Year Cohort Study
title_full_unstemmed Effects of Daily Consumption of Soy Products on Basic/Instrumental Activities of Daily Living in Community-Dwelling Japanese Women Aged 75 Years and Older: A 4-Year Cohort Study
title_short Effects of Daily Consumption of Soy Products on Basic/Instrumental Activities of Daily Living in Community-Dwelling Japanese Women Aged 75 Years and Older: A 4-Year Cohort Study
title_sort effects of daily consumption of soy products on basic instrumental activities of daily living in community dwelling japanese women aged 75 years and older a 4 year cohort study
topic basic activities of daily living
instrumental activities of daily living
isoflavones
soy products,
url https://www.liebertpub.com/doi/full/10.1089/WHR.2022.0076
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