A Worksheet for Articles about Prognosis
1. Determine Relevance:
Is this article worth taking the time to read? If the answer to any of these questions is No, it may be better to read other articles first.Based on the conclusion of the abstract or article:
A. Will this information, if true, have a direct bearing on the health of your patients and is it something they will care about?
Yes (go on ) No (stop)
B. Is the problem addressed one that is common to your practice?
Yes (go on ) No (stop)
C. Will this information, if true, require you to change your current practice?
Yes (go on ) No (stop)
2. Determine Validity:
If the answers to all three questions above are Yes, then continued assessment of the article is mandatory. Study design flaws are common; fatal flaws are arresting.Did the investigators identify a specific group of people and follow them forward in time?)D. Was an "inception cohort" assembled? (
Yes No (stop)
E. Were the criteria for entry into the study objective and reasonable?
Yes No (stop)
F. Was follow-up of subjects adequate (at least 70%-80%)?
Yes No (stop)
G. Were the patients similar to yours, in terms of age, sex, race, severity of disease, and other factors that might influence the course of the disease?
Yes No (stop)
H. Where did the subjects come from — was the referral
pattern specified?
Yes No
I. Were outcomes assessed objectively and blindly?
Yes No
A Worksheet for Articles about Diagnostic Tests
1. Determine Relevance:
Is this article worth taking the time to read? If the answer to any of these questions is No, it may be better to read other articles first.Based on the conclusion of the abstract or article:
A. Will this information, if true, have a direct bearing on the health of your patients and is it something they will care about? Yes (go on ) No (stop) B. Is the problem addressed by the diagnostic test one that is common to your practice and is the test available to you? Yes (go on ) No (stop)C. Will this information, if true, require you to change your current practice?
Yes (go on ) No (stop)2. Determine Validity:
If the answers to all three questions above are Yes, then continued assessment of the article is mandatory. Study design flaws are common; fatal flaws are arresting.D. What is the disease being addressed? What is the diagnostic test?
E. Was the new test compared with an acceptable "gold standard" test and were both tests applied in a uniformly blind manner?
F. Is the new test reasonable? What are its limitations?
G. What are the sensitivity, specificity, and predictive values of the test?
H. In terms of prevalence of the disease, are the study subjects similar to your patients? Varying prevalences will affect the predictive value of the test in your practice.
Yes No
A Worksheet for Review Articles
1. Determine Relevance:
Is this article worth taking the time to read? If the answer to any of these questions is No, it may be better to read other articles first.Based on the conclusion of the abstract or article:
A. Is the article proposing to answer a specific clinical question? (Summary-type reviews which broadly address a clinical topic can be validated only by evaluating the original research that they summarize. ) Will the answer, if true, have a direct bearing on the health of your patients and is it something that they will care about?
Yes (go on ) No (stop)
B. Is the problem addressed in the review one that is common to your practice and is the intervention feasible?
Yes (go on ) No (stop)
C. Will this information, if true, require you to change your current practice?
Yes (go on ) No (stop)
2. Determine Validity:
If the answers to all three questions above are Yes, then continued assessment of the article is mandatory. Study design flaws are common; fatal flaws are arresting.comprehensive and clearly stated?D. Were the methods used to locate relevant studies
Yes No (Stop)
to include in the overview?
Yes No (Stop)
included in the overview appropriately assessed?F. Was the validity of the original studies
Yes No (Stop)
G. Was the assessment of the relevance and validity
of the original studies reproducible and free from bias? Yes No
H. Was variation between the results of the relevant studies
analyzed? (test of homogeneity)
Yes No
I. Were the results combined appropriately?
(apples with apples) Yes No
A Worksheet for Articles about Treatment
Based on the conclusion of the abstract:
Yes (go on ) No (stop)
Yes (go on ) No (stop)
C. Will this information, if true, require you to change your current practice?
Yes (go on ) No (stop)
2. Determine Validity:
If the answers to all three questions above are Yes, then continuedassessment of the article is mandatory. Study design flaws are common; fatal flaws are arresting.
D. Was it a controlled trial and were the subjects randomly assigned?
Yes No (Stop)
do not apply?
Yes (Stop) No
F. Were steps taken to conceal the treatment assignment from study
personnel entering patients into the study (opaque envelopes, centralized randomization scheme, "concealed allocation")?Yes No
G. Were all patients who entered the trial properly accounted for at its conclusion?
i. Was follow-up complete? Yes No
ii. Were patients analyzed in the groups to which they were randomized ("intention-to-treat" analysis)? Yes No
H. Were patients and study personnel "blind" to treatment?
Yes No
I. Were the intervention and control groups similar?
Yes No
(Check "Table 1" of most studies)
J. Are the results clinically as well as statistically significant?
If a negative trial, was the power of the study adequate?
Yes No
K. Were there other factors that might have affected the outcome?
Yes No
Explain ____________________________________________________________
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