Table 2.

Quality assessment tool for case studies

Question	+	?	–
1. Was the study question or objective clearly stated?
2. Was the study case clearly and fully described, including a case definition?
3. Was the intervention clearly described?
4. Was follow-up long enough for outcomes to occur?
5. Is the case(s) described with sufficient details to allow other investigators to make inferences related to their own practice?
6. Were the outcome measures clearly defined, valid, and reliable?

(+: yes, ?: unclear, –: no)