From: Relationship between time-varying status of reflux esophagitis and Helicobacter pylori and progression to long-segment Barrett’s esophagus: time-dependent Cox proportional-hazards analysis
Time-varying RE and H. pylori status
Person-years
Elongation of SSBE to LSBE
Rate
(per 1000 person-years)
RE(−) /H. pylori (+)
12,889
5
0.4
RE(−) /H. pylori (−)
13,571
12
0.9
RE(+) /H. pylori (+)
1829
4
2.2
RE(+) /H. pylori (−)
4710
13
2.8