Comorbidities are frequent in patients with gastroesophageal reflux disease in a tertiary health care hospital.

Clinics (Sao Paulo) · 2009 · PMC2728193 · PMID 19690664

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a notable trendno p-value reported

20 Somewhat surprisingly, comorbidities were more prevalent in patients with NERD than in those with erosive disease, with a notable trend towards fewer comorbidities as the grade of esophagitis increased.

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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.