Breathlessness and incidence of COPD, cardiac events and all-cause mortality: A 44-year follow-up from middle age throughout life.

PLoS One · 2019 · PMC6422305 · PMID 30883602

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a significant trendno p-value reported

A significant trend for higher risks of cardiac events and mortality with increasing breathlessness was found when using Cox regression but when using competing risks analysis, the association disappeared.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.