Date	Event	Description
27 July 2009	Feedback has been incorporated	Further feedback from editor incorporated into updated review.
3 July 2009	Feedback has been incorporated	Feedback from editor incorporated into updated review.
11 May 2009	Feedback has been incorporated	Feedback from external peer reviewers incorporated into updated review.
21 January 2009	Feedback has been incorporated	Feedback from contact editor and editorial base incorporated into updated review.
26 November 2008	New citation required and conclusions have changed	The authors have recommended that no further trials are conducted assessing the effect of antihypertensive interventions for cognition.
26 November 2008	New search has been performed	Update of search of February 2008 retrieved several studies for consideration by the authors: upon assessment, one new study has been included (HYVET 2008); there are now four studies included in the review, with a total of 15,936 participants. In addition, two new studies have been excluded.