Rapid responses are electronic comments to the editor. They enable our users to debate issues raised in articles published on bmj.com. A rapid response is first posted online. If you need the URL (web address) of an individual response, simply click on the response headline and copy the URL from the browser window. A proportion of responses will, after editing, be published online and in the print journal as letters, which are indexed in PubMed. Rapid responses are not indexed in PubMed and they are not journal articles. The BMJ reserves the right to remove responses which are being wilfully misrepresented as published articles.
Dr. Sedgwick writes as regarding inclusion of participants in the studies included for the meta-analysis, as follows:
"Randomised controlled trials were included if the intervention consisted of seven days or more of eradication therapy, and if the control treatment was placebo or no treatment. Participants were adults who tested positive for H pylori. They were otherwise healthy and asymptomatic at baseline and were followed "for" two or more years. The primary outcome was the diagnosis of gastric cancer."
Here we have an objection that the follow-up period is important in making a diagnosis of cancer. It should not be two years or more.Two years is too less a period in development of cancer. It should be rather "from" (instead of "for") two years and more.