Table 4.

Quality Assessment Tool for Case Series Studies.

Criteria	Yes/no/other (CD, NR, NA)*
1. Was the study question or objective clearly  stated?
2. Was the study population clearly and fully described, including a case definition?
3. Were the cases consecutive?
4. Were the subjects comparable?
5. Was the intervention clearly described?
6. Were the outcome measures clearly defined,  valid, reliable, and implemented consistently  across all study participants?
7. Was the length of follow-up adequate?
8. Were the statistical methods well-described?
9. Were the results well-described?
Quality Rating (good, fair, or poor)
Rater #1 initials:
Rater #2 initials:
Additional Comments (If POOR, please state why):

Abbreviations: *CD, cannot determine; NA, not applicable; NR, not reported.