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Abstract Title:

Long-term exposure to air pollution might decrease bone mineral density T-score and increase the prevalence of osteoporosis in Hubei province: evidence from China Osteoporosis Prevalence Study.

Abstract Source:

Osteoporos Int. 2022 Jul 13. Epub 2022 Jul 13. PMID: 35831465

Abstract Author(s):

Faxue Zhang, Fang Zhou, Hao Liu, Xupeng Zhang, Shijie Zhu, Xiaowei Zhang, Gaichan Zhao, Dejia Li, Wei Zhu

Article Affiliation:

Faxue Zhang

Abstract:

: We hypothesized that air pollution could cause oxidative damage and inflammation in the human body, which was linked to bone loss. Our result showed that long-term exposure to air pollution might decrease bone mineral density (BMD) T-score and increase the prevalence of osteoporosis in Hubei province.

INTRODUCTION: Osteoporosis is becoming an increasingly serious public health problem with the advent of global aging. Long-term exposure to air pollution has been linked to multitudinous adverse health outcomes, but evidence is still relatively limited and inconsistent for BMD T-score and osteoporosis. This study aimed at exploring the associations between long-term exposure to air pollution and BMD T-score and osteoporosis.

METHODS: The Hubei part of the China Osteoporosis Prevalence Study was extracted. Data on air pollutants were collected by the national air quality real-time release platform of China Environmental Monitoring Station. Linear mixed models and multilevel logistic regression analyses were performed to assess the associations between air pollution and BMD T-score and osteoporosis, respectively. Subgroup analyses were conducted to identify vulnerable populations.

RESULTS: A total of 1845 participants were included in this cross-section study. Per 10 ug/mincrease in PMand SOwere associated with 0.20 (95% CI: 0.04, 0.36) and 0.31 (95% CI: 0.11, 0.51) decrease in BMD T-score of the neck of femur, respectively. Per 10 ug/mincrease in CO was linked with 0.03 (95% CI: 0.02, 0.05) decrease in BMD T-score of the total hip. Per 1 ug/mincrease in PMwas associated with 5% increase in the prevalence of osteoporosis in all participants. In general, the higher concentrations of PMwith the more adverse effect on osteoporosis (P for trend = 0.01). The impact of PMon osteoporosis in males was higher than that in females [1.29, 95% CI (1.11, 1.50) vs 1.01, 95% CI (0.95, 1.07)]. Per 1 ug/mincrease in PMcorresponded with 4% elevation in the risks of osteoporosis in rural population. The ORs (95% CI) for the association of osteoporosis and NOin ever/current smoking and drinking population were 1.07 (1.01, 1.13) and 1.05 (1.00, 1.09), respectively. SOhad a statistically significant positive effect on people with comorbidity [OR = 1.10, (95% CI: 1.00 to 1.21)], while none in people without comorbidity [OR = 0.96, (95% CI: 0.88 to 1.05)].

CONCLUSION: Our study provided evidence that long-term exposure to PMwas linked with the decreased BMD T-score and increased risk of osteoporosis among all participants. The adverse impacts of PM, PM, and NOwere larger in males than in females. People having comorbidity, living in rural areas, and current/ever smoking or drinking were more vulnerable to air pollution. Public health departments should consider air pollution to formulate better preventive measures for osteoporosis.

Study Type : Human Study

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