COPD exacerbations by disease severity in England.

Int J Chron Obstruct Pulmon Dis · 2016 · PMC4824283 · PMID 27099486

Europe PMC DOI

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a decreasing trendno p-value reported

During the study period, the annual rates of GP visits remained stable among patients in the lower severity categories, whereas a decreasing trend was observed in the higher severity categories.

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