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Table 4 Correlation of H. pylori infection rate and reflux esophagitis (RE) between 2003 and 2012

From: Downward trend in the prevalence of Helicobacter pylori infections and corresponding frequent upper gastrointestinal diseases profile changes in Southeastern China between 2003 and 2012

Year	RE
Year	Hp in RE (+) %	Hp in RE (−) %	D value %
2003	39.01	42.62	−3.61
2004	38.67	40.57	−1.90
2005	31.00	35.08	−4.08
2006	35.57	37.37	−1.80
2007	30.91	36.31	−5.40
2008	29.68	31.40	−1.72
2009	28.18	29.28	−1.10
2010	27.81	28.20	−0.39
2011	23.82	25.66	−1.84
2012	22.68	23.99	−1.31
Total	28.87	32.36	−3.49

The H. pylori infection rate in positive and negative groups of RE between 2003 and 2012
Hp H. pylori

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