1 Subjects: “...Arthroplasty, Replacement, Knee / statistics & numerical data...”

2 Subjects: “...Health Services Misuse / prevention & control...”

3 Subjects: “...Health Personnel / statistics & numerical data...”

4 “.... Statistically significant effects across existing studies were reported for hypertension, falls outside...”

5 “.... Statistically significant effects across existing studies were reported for hypertension, falls outside...”

6

7

8 “... criterion in order to limit evaluation to RCTs that had the potential for adequate statistical power...”

9 “... criterion in order to limit evaluation to RCTs that had the potential for adequate statistical power...”