Study designs of evaluations included in the review
Randomised controlled trials (RCTs) of any anti-hypertensive drug treatments administered in any form in which hypertension is defined as diastolic (>89mm Hg), systolic (>159mm Hg) or isolated systolic (>159mm Hg) systolic (<90mm Hg diastolic).
Specific interventions included in the review
Antihypertensive drug treatment.
Participants included in the review
Men and women with a minimum age of 60 years and with hypertension defined as diastolic (>89mm Hg), systolic (>159mm Hg) or isolated systolic (>159mm Hg systolic/<90mm Hg diastolic) on at least one measurement.
Outcomes assessed in the review
Mortality and morbidity
How were decisions on the relevance of primary studies made?
The authors do not state how the papers were selected for the review, or how many of the authors performed the selection.