Table 3

Effect sizes of kyphoplasty versus vertebroplasty for difference measures (from baseline) in mean pain and Roland–Morris disability scores over 12 months of follow-up

KyphoplastyVertebroplasty95% CI
Mean difference by measure and timeNMeanSDNMeanSDSEEffect sizeLowerUpper
Difference in average pain
 Baseline to 3 days55−3.473.0551−4.103.470.32−0.19−0.810.43
 Baseline to 30 days53−4.022.7846−4.173.390.31−0.05−0.650.55
 Baseline to 6 months48−3.793.7241−4.443.350.38−0.18−0.920.56
 Baseline to 12 months41−4.273.1543−5.372.980.34−0.36−1.020.31
Difference in Roland–Morris disability score
 Baseline to 3 days55−5.447.2351−5.127.710.720.04−1.371.46
 Baseline to 30 days54−8.766.9051−7.298.970.780.18−1.341.71
 Baseline to 6 months49−8.947.6544−8.488.390.830.06−1.561.68
 Baseline to 12 months43−9.127.6743−9.447.920.84−0.04−1.681.60