期刊
ENVIRONMENTAL RESEARCH LETTERS
卷 16, 期 9, 页码 -出版社
IOP Publishing Ltd
DOI: 10.1088/1748-9326/ac1c28
关键词
ultrafine particles; blood pressure; hypertension; prehypertension; public health
资金
- National Key Research and Development Program of China [2018YFE0106900, 2018YFC1004300]
- National Natural Science Foundation of China [82073502, 82003418, 81972992, 81872582, 81872583]
- Science and Technology Program of Guangzhou [201807010032, 201803010054]
- Guangdong Provincial Natural Science Foundation Team Project [2018B030312005]
- Fundamental Research Funds for the Central Universities [19ykjc01]
- Natural Science Foundation of Guangdong Province [2020A1515011131, 2019A050510017, 2018B05052007, 2017A090905042]
The study found that long-term exposure to ultrafine particles was associated with elevated blood pressure and increased risk of hypertension, especially in women and overweight/obese participants.
The toxicity of ultrafine particles (UFPs) on blood pressure (BP) has not been well studied. We aimed to evaluate the associations of long-term UFP exposure with different components of BP and the risk of prehypertension/hypertension. We included a total of 24 845 Chinese adults (18-74 years old) in a cross-sectional survey (Liaoning province, China). The 4 year (2006-2009) average concentrations of UFP was estimated using a chemical transport model. We measured systolic blood pressure (SBP), diastolic blood pressure (DBP), mean arterial pressure (MAP) and pulse pressure (PP), prehypertension and hypertension. We used a generalized linear mixed model to examine the associations while controlling for important individual covariates. One unit (1 mu g m(-3)) increase in UFP was associated with an increase in SBP of 1.52 mm Hg [95% confidence interval (CI): 0.48-2.55], DBP of 0.55 mm Hg (95% CI: 0.01-1.08) in DBP, MAP of 0.92 mm Hg (95% CI: 0.23-1.61) and PP of 0.62 mm Hg (95% CI: 0.05-1.20). The UFP-BP associations were stronger in women than in men. One unit increase in UFP was associated with an increased risk of hypertension and prehypertension (OR = 1.23, 95% CI: 1.09-1.38; OR = 1.12, 95% CI: 1.04-1.21) compared to normotension group, and these associations were stronger in overweight/obese participants. Our study showed that long-term exposure to UFP was associated with elevated BP and higher odds of hypertension. These findings suggest that strategies to monitor and reduce UFPs, which are not a regulated pollutant, could have beneficial cardiovascular effects.
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