Association of Indoor and Outdoor Air Pollution with Hand-Grip Strength among Adults in Six Low- and Middle-Income Countries

Hualiang Lin, Yanfei Guo, Zengliang Ruan, Paul Kowal, Qian Di, Yang Zheng, Jianpeng Xiao, Emiel O Hoogendijk, Elsa Dent, Michael G Vaughn, Steven W Howard, Zheng Cao, Wenjun Ma, Zhengmin Min Qian, Fan Wu

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Background: Air pollution has been associated with various health outcomes. Its effect on hand-grip strength, a measurement of the construct of muscle strength and health status, remains largely unknown.

Methods: We used the survey data from 31,209 adults ≥ 50 years of age within Wave 1 of the Study on Global AGEing and Adult Health in six low- and middle-income countries. The outdoor concentration of fine particulate matter pollution (PM2.5) was estimated using satellite data. Domestic fuel type and ventilation were used as indicators of indoor air pollution. We used multi-level linear regression models to examine the association between indoor and outdoor air pollution and hand-grip strength, as well as the potential effect modifiers.

Results: We found inverse associations between both indoor and outdoor air pollution and hand-grip strength. Each 10 μg/m3 increase in three years' averaged concentrations of outdoor PM2.5 corresponded to 0.70 kg (95% CI: -1.26, -0.14) lower hand-grip strength; and compared with electricity/liquid/gas fuel users, those using solid fuels had lower hand-grip strength (β=-1.25, 95% CI: -1.74, -0.75). While, ventilation was not associated with hand-grip strength. We further observed that urban residents and those having a higher education level had a higher association between ambient PM2.5 and hand-grip strength, and men, young participants, smokers, rural participants, and those with lower household income had higher associations between indoor air pollution and hand-grip strength.

Conclusion: This study suggests that both indoor and outdoor air pollution might be important risk factors of poorer health and functional status as indicated by hand-grip strength.

Original languageEnglish
JournalThe journals of gerontology. Series A, Biological sciences and medical sciences
DOIs
Publication statusE-pub ahead of print - 7 Feb 2019

Cite this

Lin, Hualiang ; Guo, Yanfei ; Ruan, Zengliang ; Kowal, Paul ; Di, Qian ; Zheng, Yang ; Xiao, Jianpeng ; Hoogendijk, Emiel O ; Dent, Elsa ; Vaughn, Michael G ; Howard, Steven W ; Cao, Zheng ; Ma, Wenjun ; Qian, Zhengmin Min ; Wu, Fan. / Association of Indoor and Outdoor Air Pollution with Hand-Grip Strength among Adults in Six Low- and Middle-Income Countries. In: The journals of gerontology. Series A, Biological sciences and medical sciences. 2019.
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title = "Association of Indoor and Outdoor Air Pollution with Hand-Grip Strength among Adults in Six Low- and Middle-Income Countries",
abstract = "Background: Air pollution has been associated with various health outcomes. Its effect on hand-grip strength, a measurement of the construct of muscle strength and health status, remains largely unknown.Methods: We used the survey data from 31,209 adults ≥ 50 years of age within Wave 1 of the Study on Global AGEing and Adult Health in six low- and middle-income countries. The outdoor concentration of fine particulate matter pollution (PM2.5) was estimated using satellite data. Domestic fuel type and ventilation were used as indicators of indoor air pollution. We used multi-level linear regression models to examine the association between indoor and outdoor air pollution and hand-grip strength, as well as the potential effect modifiers.Results: We found inverse associations between both indoor and outdoor air pollution and hand-grip strength. Each 10 μg/m3 increase in three years' averaged concentrations of outdoor PM2.5 corresponded to 0.70 kg (95{\%} CI: -1.26, -0.14) lower hand-grip strength; and compared with electricity/liquid/gas fuel users, those using solid fuels had lower hand-grip strength (β=-1.25, 95{\%} CI: -1.74, -0.75). While, ventilation was not associated with hand-grip strength. We further observed that urban residents and those having a higher education level had a higher association between ambient PM2.5 and hand-grip strength, and men, young participants, smokers, rural participants, and those with lower household income had higher associations between indoor air pollution and hand-grip strength.Conclusion: This study suggests that both indoor and outdoor air pollution might be important risk factors of poorer health and functional status as indicated by hand-grip strength.",
author = "Hualiang Lin and Yanfei Guo and Zengliang Ruan and Paul Kowal and Qian Di and Yang Zheng and Jianpeng Xiao and Hoogendijk, {Emiel O} and Elsa Dent and Vaughn, {Michael G} and Howard, {Steven W} and Zheng Cao and Wenjun Ma and Qian, {Zhengmin Min} and Fan Wu",
year = "2019",
month = "2",
day = "7",
doi = "10.1093/gerona/glz038",
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journal = "Journals of Gerontology. Series A: Biological Sciences & Medical Sciences",
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Association of Indoor and Outdoor Air Pollution with Hand-Grip Strength among Adults in Six Low- and Middle-Income Countries. / Lin, Hualiang; Guo, Yanfei; Ruan, Zengliang; Kowal, Paul; Di, Qian; Zheng, Yang; Xiao, Jianpeng; Hoogendijk, Emiel O; Dent, Elsa; Vaughn, Michael G; Howard, Steven W; Cao, Zheng; Ma, Wenjun; Qian, Zhengmin Min; Wu, Fan.

In: The journals of gerontology. Series A, Biological sciences and medical sciences, 07.02.2019.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Association of Indoor and Outdoor Air Pollution with Hand-Grip Strength among Adults in Six Low- and Middle-Income Countries

AU - Lin, Hualiang

AU - Guo, Yanfei

AU - Ruan, Zengliang

AU - Kowal, Paul

AU - Di, Qian

AU - Zheng, Yang

AU - Xiao, Jianpeng

AU - Hoogendijk, Emiel O

AU - Dent, Elsa

AU - Vaughn, Michael G

AU - Howard, Steven W

AU - Cao, Zheng

AU - Ma, Wenjun

AU - Qian, Zhengmin Min

AU - Wu, Fan

PY - 2019/2/7

Y1 - 2019/2/7

N2 - Background: Air pollution has been associated with various health outcomes. Its effect on hand-grip strength, a measurement of the construct of muscle strength and health status, remains largely unknown.Methods: We used the survey data from 31,209 adults ≥ 50 years of age within Wave 1 of the Study on Global AGEing and Adult Health in six low- and middle-income countries. The outdoor concentration of fine particulate matter pollution (PM2.5) was estimated using satellite data. Domestic fuel type and ventilation were used as indicators of indoor air pollution. We used multi-level linear regression models to examine the association between indoor and outdoor air pollution and hand-grip strength, as well as the potential effect modifiers.Results: We found inverse associations between both indoor and outdoor air pollution and hand-grip strength. Each 10 μg/m3 increase in three years' averaged concentrations of outdoor PM2.5 corresponded to 0.70 kg (95% CI: -1.26, -0.14) lower hand-grip strength; and compared with electricity/liquid/gas fuel users, those using solid fuels had lower hand-grip strength (β=-1.25, 95% CI: -1.74, -0.75). While, ventilation was not associated with hand-grip strength. We further observed that urban residents and those having a higher education level had a higher association between ambient PM2.5 and hand-grip strength, and men, young participants, smokers, rural participants, and those with lower household income had higher associations between indoor air pollution and hand-grip strength.Conclusion: This study suggests that both indoor and outdoor air pollution might be important risk factors of poorer health and functional status as indicated by hand-grip strength.

AB - Background: Air pollution has been associated with various health outcomes. Its effect on hand-grip strength, a measurement of the construct of muscle strength and health status, remains largely unknown.Methods: We used the survey data from 31,209 adults ≥ 50 years of age within Wave 1 of the Study on Global AGEing and Adult Health in six low- and middle-income countries. The outdoor concentration of fine particulate matter pollution (PM2.5) was estimated using satellite data. Domestic fuel type and ventilation were used as indicators of indoor air pollution. We used multi-level linear regression models to examine the association between indoor and outdoor air pollution and hand-grip strength, as well as the potential effect modifiers.Results: We found inverse associations between both indoor and outdoor air pollution and hand-grip strength. Each 10 μg/m3 increase in three years' averaged concentrations of outdoor PM2.5 corresponded to 0.70 kg (95% CI: -1.26, -0.14) lower hand-grip strength; and compared with electricity/liquid/gas fuel users, those using solid fuels had lower hand-grip strength (β=-1.25, 95% CI: -1.74, -0.75). While, ventilation was not associated with hand-grip strength. We further observed that urban residents and those having a higher education level had a higher association between ambient PM2.5 and hand-grip strength, and men, young participants, smokers, rural participants, and those with lower household income had higher associations between indoor air pollution and hand-grip strength.Conclusion: This study suggests that both indoor and outdoor air pollution might be important risk factors of poorer health and functional status as indicated by hand-grip strength.

U2 - 10.1093/gerona/glz038

DO - 10.1093/gerona/glz038

M3 - Article

JO - Journals of Gerontology. Series A: Biological Sciences & Medical Sciences

JF - Journals of Gerontology. Series A: Biological Sciences & Medical Sciences

SN - 1079-5006

ER -