Articles	Reviewer □1 □2
STEP1. Primary Evaluation	1	2	3	4	5
Please do this by reading the title/abstract	□Reject □Accept	□Reject □Accept	□Reject □Accept	□Reject □Accept	□Reject □Accept
STEP2. Read the full text deeply and score those articles pass the primary evaluation
1. Random sample or whole population
2. Unbiased sampling frame (i.e. census data)
3. Adequate sample size (>300 subjects)
4. Standards measures were used?
5. Outcomes measured by unbiased assessors
6. Adequate response rate (70%), refusals described
7. Confidence intervals, subgroup analysis
Total score
Final decision	□Reject □Accept	□Reject □Accept	□Reject □Accept	□Reject □Accept	□Reject □Accept
If the article meets the criteria, put score 1 in the cell.
Articles with total score more than 5 are accepted in the study