Table 1.

Scoring Criteria from the Jadad Scale and the Wayne Checklist

Three-item Jadad scale used by Lee et al.9	Nine-item checklist used by Wayne et al.10
1. Randomized?	1. Randomized?
2 if a proper method; 1 if no description or an improper method; 0 otherwise.	2. Proper randomization methods? 3. Clear inclusion and exclusion criteria?
2. Blinding?	4. Outcome assessors blinded?
2 if double blinding; 1 if outcome assessor  blinding only; 0 if no blinding.	5. Description of patient withdrawals and dropouts? 6. Sample size justified and estimated for power?
3. Description of patient withdrawals and dropouts?	7. Appropriate data analysis? 8. T'ai chi intervention described?
1 if a description is given; 0 otherwise. Possible scores: 0–5	9. Qualifications of t'ai chi instructors? For all items 1 if yes; 0 otherwise. Possible scores: 0–9