Air Pollution Linked to Higher Risk of Coronary Artery Calcification

A new study of Chinese adults finds a link between air pollution and a higher risk of developing atherosclerosis, or coronary artery calcification, as well as death from heart disease.Air Pollution Linked to Higher Risk of Coronary Artery Calcification

To investigate the influence of air pollution, a team of researchers analyzed data on 8,867 Chinese people whose age varied from 25 to 92 years. All of them had suspected coronary heart disease and were recruited between 2015 and 2017.

The analysis showed that for each nitrogen dioxide increase of 20 μg/m3, the risk of having a high coronary artery calcium score increased by 24.5 per cent, and for each 30 μg/m3, the risk increased by 27.2 per cent.

The lead author Meng Wang says: “This study may provide evidence that coronary atherosclerosis is a pathological pathway through which air pollution exposure increases risk of death from coronary heart disease.”

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