Exact(3)
In our opinion this is a poor quality study but its authors know enough to be dangerous.
They observed that a positive mortality outcome with GDT was associated with a poor quality study.
This is a poor quality study with an apparent lack of randomisation and non-equivalent control group, poor reporting and no comparison of groups, although outcomes are objective and intervention is well reported.
Similar(57)
Among RCTs comparing the two treatment modalities, the RCT performed by Adolfsson et al. [7] was a poor-quality study providing level 2b evidence.
A poor-quality study is not valid and the results are at least as likely to reflect flaws in the study design as a true difference among the compared drugs.
The first of these, a poor-quality study, was associated with higher premature drop-out, but more satisfaction in the intervention group and improvements in their expectations of what therapy might offer.
A study awarded 7 stars or more is considered a high-quality study, 4-6 stars is considered a moderate-quality study, and 0-3 stars is considered a poor-quality study.
When one doubts the outcomes of a poor-quality study, one is in effect entertaining the possibility that some array of other factors or reasons (beside the one the study aimed at characterizing) has accounted for the outcomes, and the study's design does not allow one to attribute the outcomes confidently to the nominally tested influence.
Thereafter, the reluctance to share data might be considered as a further clue of poor quality study.
6 This poor quality study found a 58% cure rate among the patients allocated to cryotherapy, compared with 41% among those treated with salicylic acid.
PEP; only one small poor quality study of transdermal oestrogen cream was identified.
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com