Jadad scale-how to write it in your manuscript.pptx

1. Jadad scale-how to write it in your
manuscript
1. In material and methods :
• The Jadad scale, which scores randomization,
double blinding, and withdrawal, was used to
evaluate the methodological quality of the
trials.(references) Scores range from 0-3 (low
quality or high risk of bias) to 4-5 (high quality
or low risk of bias).

2. Jadad scale-how to write it in your
manuscript
1. In results:
Risk For Bias Within Studies
With respect to the quality assessment of the
included studies, seven 7 studies showed a low
risk for bias and 3 studies2 showed a high risk for
bias. The scores are summarized in Table 2.

3. Delphi Scale (1998)

4. Combination between Jadad and
Delphi scales

5. Combination between Jadad and
Delphi scales
• In material and methods
• The Delphi List and Jadad Scale are the most valid
quality assessment scales.23,25 Therefore, in the
present study, both criteria lists were used.
• These scores were combined, which means that only
studies with a Jadad score of 4-5 and a Delphi score
of 6-9 were assessed to be of “high quality.” Studies
with a Jadad score of 0-3 or a Delphi score 0-5 were
considered to be of “low quality.”

6. A common classification scheme for bias
Type of bias Description Relevant domains in the Collaboration’s
‘Risk of bias’ tool
Selection bias. Systematic differences between
baseline characteristics of the
groups that are compared.
•Sequence generation.
•Allocation concealment.
Performance
bias.
Systematic differences between
groups in the care that is
provided, or in exposure to
factors other than the
interventions of interest.
•Blinding of participants and personnel.
•Other potential threats to validity.
Detection bias. Systematic differences between
groups in how outcomes are
determined.
•Blinding of outcome assessment.
•Other potential threats to validity.
Attrition bias. Systematic differences between
groups in withdrawals from a
study.
•Incomplete outcome data
Reporting bias. Systematic differences between
reported and unreported
findings.
•Selective outcome reporting.