Association between chronic disease and catastrophic health expenditure in Korea.

BMC Health Serv Res · 2015 · PMC4307618 · PMID 25608983

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a clear trendno p-value reported

The results displayed a clear trend of an increasing burden of medical expenses as income approached the poverty line.

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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.