Cochrane · systematic review · CD011971

Antihypertensive withdrawal for the prevention of cognitive decline

Jongstra, S, Harrison, JK, Quinn, TJ, et al. · Cochrane Database of Systematic Reviews · 2016 · Cochrane Library

SoF tableOnly the outcomes this review put in its Summary of Findings table are listed (the Cochrane Handbook caps them at about seven per comparison). Its other analyses are not shown here.
Questions
7
current version
GRADE rated
5
No studies
2
Included studies
NR
No studies 2 · 28.6%Ungraded 0 · 0%Very low 1 · 14.3%Low 3 · 42.9%Moderate 1 · 14.3%High 0 · 0%

Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.

Questions and results

Antihypertensive withdrawal for the prevention of cognitive decline

Population: adults with cognitive impairment/dementia and cognitively intact populations
7 questions
OutcomeEffectEvidenceStatus / GRADE
Incident dementia ‐ not measured
no estimate extractedNRNo studies
Cognition (at 90 days): t‐MMSE score1
no estimate extracted1 study · 17842 participantsVery low
Downgraded: risk of bias, imprecision, indirectness
Composite cognitive function6 (change over 16 weeks)
no estimate extracted1 study · 3517 participantsLow
Downgraded: risk of bias, imprecision, indirectness
Mortality (at 3 to 4 months'
RR 0.88 [0.72, 1.08]2 studies · 2485 participantsModerate
Downgraded: risk of bias, imprecision, indirectness
Cardiovascular events (at 3 to 4 months'
RR 1.29 [0.96, 1.72]2 studies · 2485 participantsLow
Downgraded: risk of bias, imprecision, indirectness
Falls ‐ not measured
no estimate extractedNRNo studies
Hospitalisations (at 4 months'
RR 0.85 [0.36, 2.06]1 study · 388 participantsLow
Downgraded: risk of bias, imprecision, indirectness