Gap finder
Search review questions
Each row is one question a systematic review asked: who, what, compared with what, and which outcome, with the effect it found and how certain that is. Words match anywhere in the field.
1,049 questions in 79 reviews · Dementia and Cognitive Improvement
current versionsNo studies 240 · 22.9%Ungraded 31 · 3%Very low 216 · 20.6%Low 253 · 24.1%Moderate 238 · 22.7%High 71 · 6.8%
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.
| Question | Effect | Evidence | Status / GRADE |
|---|---|---|---|
YinDanXingNaoTong vs 'no treatment' Global performance (improved) ‐ not‐ measured · People with vascular dementia Traditional Chinese herbal medicine for vascular dementia (2018) · Cochrane | no estimate extracted | NR | No studies |
YinDanXingNaoTong vs 'no treatment' Adverse events (AEs) (1 or more events) · People with vascular dementia Traditional Chinese herbal medicine for vascular dementia (2018) · Cochrane | RD 0 | 2 studies · 138 participants | Low |
YinDanXingNaoTong vs 'no treatment' Activities of Daily Living (ADL) · People with vascular dementia Traditional Chinese herbal medicine for vascular dementia (2018) · Cochrane | no estimate extracted | 2 studies · 139 participants | Moderate |
YinDanXingNaoTong vs 'no treatment' Behaviour ‐ not measured · People with vascular dementia Traditional Chinese herbal medicine for vascular dementia (2018) · Cochrane | no estimate extracted | NR | No studies |
FuFangHaiShe vs Western medicine Cognition‐MMSE · People with vascular dementia Traditional Chinese herbal medicine for vascular dementia (2018) · Cochrane | no estimate extracted | 2 studies · 143 participants | Very low |
FuFangDanShen vs 'no treatment' Cognition‐ADAS‐Cog · people with vascular dementia Traditional Chinese herbal medicine for vascular dementia (2018) · Cochrane | no estimate extracted | 3 studies · 321 participants | Moderate |
FuFangHaiShe vs Western medicine Cognition‐HDS ‐ not measured · People with vascular dementia Traditional Chinese herbal medicine for vascular dementia (2018) · Cochrane | no estimate extracted | NR | No studies |
FuFangHaiShe vs Western medicine Cognition‐ADAS‐Cog ‐ only measured in one study · People with vascular dementia Traditional Chinese herbal medicine for vascular dementia (2018) · Cochrane | no estimate extracted | NR | No studies |
FuFangHaiShe vs Western medicine Global performance (improved) ‐ not measured · People with vascular dementia Traditional Chinese herbal medicine for vascular dementia (2018) · Cochrane | no estimate extracted | NR | No studies |
FuFangHaiShe vs Western medicine AE (1 or more events) · People with vascular dementia Traditional Chinese herbal medicine for vascular dementia (2018) · Cochrane | no estimate extracted | 2 studies · 143 participants | Very low |
FuFangHaiShe vs Western medicine Activities of Daily Living (ADL) · People with vascular dementia Traditional Chinese herbal medicine for vascular dementia (2018) · Cochrane | no estimate extracted | 2 studies · 143 participants | Very low |
FuFangHaiShe vs Western medicine Behaviour ‐ not measured · People with vascular dementia Traditional Chinese herbal medicine for vascular dementia (2018) · Cochrane | no estimate extracted | NR | No studies |
NaoMaiTai vs Western medicine Cognition‐MMSE · People with vascular dementia Traditional Chinese herbal medicine for vascular dementia (2018) · Cochrane | no estimate extracted | 4 studies · 289 participants | Moderate |
NaoMaiTai vs Western medicine Cognition‐HDS ‐ only measured in one study · People with vascular dementia Traditional Chinese herbal medicine for vascular dementia (2018) · Cochrane | no estimate extracted | NR | No studies |
NaoMaiTai vs Western medicine Cognition‐ADAS‐Cog ‐ only measured in one study · People with vascular dementia Traditional Chinese herbal medicine for vascular dementia (2018) · Cochrane | no estimate extracted | NR | No studies |
NaoMaiTai vs Western medicine Global performance (improved) ‐ not measured · People with vascular dementia Traditional Chinese herbal medicine for vascular dementia (2018) · Cochrane | no estimate extracted | NR | No studies |
FuFangDanShen vs 'no treatment' Global performance (improved) ‐ not measured · people with vascular dementia Traditional Chinese herbal medicine for vascular dementia (2018) · Cochrane | no estimate extracted | NR | No studies |
NaoMaiTai vs Western medicine Adverse events (AEs) (1 or more events) · People with vascular dementia Traditional Chinese herbal medicine for vascular dementia (2018) · Cochrane | RD 0.02 | 4 studies · 277 participants | Very low |
NaoMaiTai vs Western medicine Activities of Daily Living (ADL) ‐ not measured · People with vascular dementia Traditional Chinese herbal medicine for vascular dementia (2018) · Cochrane | no estimate extracted | NR | No studies |
NaoMaiTai vs Western medicine Behaviour ‐ not measured · People with vascular dementia Traditional Chinese herbal medicine for vascular dementia (2018) · Cochrane | no estimate extracted | NR | No studies |
NaoXinTong vs Western medicine Cognition‐MMSE · People with vascular dementia Traditional Chinese herbal medicine for vascular dementia (2018) · Cochrane | no estimate extracted | 6 studies · 461 participants | Moderate |
NaoXinTong vs Western medicine Cognition‐HDS · People with vascular dementia Traditional Chinese herbal medicine for vascular dementia (2018) · Cochrane | no estimate extracted | 3 studies · 258 participants | Low |
NaoXinTong vs Western medicine Cognition‐ADAS‐Cog ‐ not measured · People with vascular dementia Traditional Chinese herbal medicine for vascular dementia (2018) · Cochrane | no estimate extracted | NR | No studies |
NaoXinTong vs Western medicine Global performance (improved) · People with vascular dementia Traditional Chinese herbal medicine for vascular dementia (2018) · Cochrane | RR 1.43 [1.15, 1.78] | 2 studies · 168 participants | Moderate |
NaoXinTong vs Western medicine Adverse events (AEs) (1 or more events) · People with vascular dementia Traditional Chinese herbal medicine for vascular dementia (2018) · Cochrane | no estimate extracted | 7 studies · 515 participants | Moderate |
NaoXinTong vs Western medicine Activities of Daily Living (ADL) · People with vascular dementia Traditional Chinese herbal medicine for vascular dementia (2018) · Cochrane | no estimate extracted | 3 studies · 227 participants | Moderate |
NaoXinTong vs Western medicine Behaviour ‐ not measured · People with vascular dementia Traditional Chinese herbal medicine for vascular dementia (2018) · Cochrane | no estimate extracted | NR | No studies |
FuFangDanShen vs 'no treatment' Adverse events (AEs) (1 or more) · people with vascular dementia Traditional Chinese herbal medicine for vascular dementia (2018) · Cochrane | RD 0.02 | 3 studies · 322 participants | Low |
QingKaiLing vs Western medicine Cognition‐MMSE ‐ only measured in one study · People with vascular dementia Traditional Chinese herbal medicine for vascular dementia (2018) · Cochrane | no estimate extracted | NR | No studies |
QingKaiLing vs Western medicine Cognition‐HDS · People with vascular dementia Traditional Chinese herbal medicine for vascular dementia (2018) · Cochrane | no estimate extracted | 2 studies · 150 participants | Low |
QingKaiLing vs Western medicine Cognition‐ADAS‐Cog ‐ not measured · People with vascular dementia Traditional Chinese herbal medicine for vascular dementia (2018) · Cochrane | no estimate extracted | NR | No studies |
QingKaiLing vs Western medicine Global performance (improved) ‐ not measured · People with vascular dementia Traditional Chinese herbal medicine for vascular dementia (2018) · Cochrane | no estimate extracted | NR | No studies |
QingKaiLing vs Western medicine Adverse events (AEs) (one or more events) ‐ only measured in one study · People with vascular dementia Traditional Chinese herbal medicine for vascular dementia (2018) · Cochrane | no estimate extracted | NR | No studies |
QingKaiLing vs Western medicine Activities of Daily Living (ADL) ‐ only measured in one study · People with vascular dementia Traditional Chinese herbal medicine for vascular dementia (2018) · Cochrane | no estimate extracted | NR | No studies |
QingKaiLing vs Western medicine Behaviour ‐ not measured · People with vascular dementia Traditional Chinese herbal medicine for vascular dementia (2018) · Cochrane | no estimate extracted | NR | No studies |
ShenFuTang vs Western medicine Cognition‐MMSE · People with vascular dementia Traditional Chinese herbal medicine for vascular dementia (2018) · Cochrane | no estimate extracted | 4 studies · 323 participants | Very low |
ShenFuTang vs Western medicine Cognition‐HDS ‐ only measured in one study · People with vascular dementia Traditional Chinese herbal medicine for vascular dementia (2018) · Cochrane | no estimate extracted | NR | No studies |
ShenFuTang vs Western medicine Cognition‐ADAS‐Cog ‐ not measured · People with vascular dementia Traditional Chinese herbal medicine for vascular dementia (2018) · Cochrane | no estimate extracted | NR | No studies |
FuFangDanShen vs 'no treatment' Activities of Daily Living (ADL) · people with vascular dementia Traditional Chinese herbal medicine for vascular dementia (2018) · Cochrane | no estimate extracted | 2 studies · 95 participants | Moderate |
ShenFuTang vs Western medicine Global performance (improved) ‐ not measured · People with vascular dementia Traditional Chinese herbal medicine for vascular dementia (2018) · Cochrane | no estimate extracted | NR | No studies |
ShenFuTang vs Western medicine Adverse events (AEs) (1 or more events) · People with vascular dementia Traditional Chinese herbal medicine for vascular dementia (2018) · Cochrane | no estimate extracted | 2 studies · 166 participants | Low |
ShenFuTang vs Western medicine Activities of Daily Living (ADL) · People with vascular dementia Traditional Chinese herbal medicine for vascular dementia (2018) · Cochrane | no estimate extracted | 2 studies · 189 participants | Very low |
ShenFuTang vs Western medicine Behaviour ‐ not measured · People with vascular dementia Traditional Chinese herbal medicine for vascular dementia (2018) · Cochrane | no estimate extracted | NR | No studies |
TongXingLuo vs Western medicine Cognition‐MMSE · People with vascular dementia Traditional Chinese herbal medicine for vascular dementia (2018) · Cochrane | no estimate extracted | 2 studies · 180 participants | Moderate |
TongXingLuo vs Western medicine Cognition‐HDS ‐ only measured in one study · People with vascular dementia Traditional Chinese herbal medicine for vascular dementia (2018) · Cochrane | no estimate extracted | NR | No studies |
TongXingLuo vs Western medicine Cognition‐ADAS‐Cog ‐ not measured · People with vascular dementia Traditional Chinese herbal medicine for vascular dementia (2018) · Cochrane | no estimate extracted | NR | No studies |
TongXingLuo vs Western medicine Global performance (improved) · People with vascular dementia Traditional Chinese herbal medicine for vascular dementia (2018) · Cochrane | RR 1.26 [1, 1.6] | 2 studies · 180 participants | Low |
TongXingLuo vs Western medicine Adverse events (AEs) (1 or more) · People with vascular dementia Traditional Chinese herbal medicine for vascular dementia (2018) · Cochrane | no estimate extracted | 2 studies · 180 participants | Low |
TongXingLuo vs Western medicine Activities of Daily Living (ADL) ‐ only measured in one study · People with vascular dementia Traditional Chinese herbal medicine for vascular dementia (2018) · Cochrane | no estimate extracted | NR | No studies |
FuFangDanShen vs 'no treatment' Behaviour ‐ not measured · people with vascular dementia Traditional Chinese herbal medicine for vascular dementia (2018) · Cochrane | no estimate extracted | NR | No studies |