Table 2 Ratings for each methodological quality criterion within and across journals
From: Risk of bias of randomized controlled trials published in orthopaedic journals
Methodological quality criteria | Journal* | Yes | No | Not reported |
|---|---|---|---|---|
Proper Methods of Randomization | AJSM | 70.3% | 9.5% | 20.3% |
JBJS | 74.5% | 6.6% | 18.9% | |
JOR | 57.1% | 0.0% | 42.9% | |
OC | 58.3% | 8.3% | 33.3% | |
SJ | 56.3% | 0.0% | 43.8% | |
Mean | 63.3% | 4.9% | 31.8% | |
Concealment of Subject Allocation | AJSM | 66.2% | 8.1% | 25.7% |
JBJS | 75.5% | 6.6% | 17.9% | |
JOR | 57.1% | 0.0% | 42.9% | |
OC | 61.1% | 5.6% | 33.3% | |
SJ | 56.3% | 0.0% | 43.8% | |
Mean | 63.2% | 4.1% | 32.7% | |
Blinding of Participants | AJSM | 14.9% | 18.9% | 66.2% |
JBJS | 20.8% | 23.6% | 55.7% | |
JOR | 14.3% | 0.0% | 85.7% | |
OC | 30.6% | 16.7% | 52.8% | |
SJ | 25.0% | 37.5% | 37.5% | |
Mean | 21.1% | 19.3% | 59.6% | |
Blinding of Outcome Assessor | AJSM | 51.4% | 14.9% | 33.8% |
JBJS | 45.3% | 21.7% | 33.0% | |
JOR | 57.1% | 0.0% | 42.9% | |
OC | 61.1% | 2.8% | 36.1% | |
SJ | 37.5% | 18.8% | 43.8% | |
Mean | 50.5% | 11.6% | 37.9% | |
Outcome Measurements Performed in the Same Manner | AJSM | 91.9% | 1.4% | 6.8% |
JBJS | 95.3% | 0.9% | 3.8% | |
JOR | 100.0% | 0.0% | 0.0% | |
OC | 97.2% | 0.0% | 2.8% | |
SJ | 87.5% | 0.0% | 12.5% | |
Mean | 94.4% | 0.5% | 5.2% | |
Interventions Administration by Similarly Trained Individuals | AJSM | 79.7% | 1.4% | 18.9% |
JBJS | 48.1% | 1.9% | 50.0% | |
JOR | 14.3% | 0.0% | 85.7% | |
Osteo | 0.0% | 0.0% | 100.0% | |
SJ | 12.5% | 0.0% | 87.5% | |
Mean | 30.9% | 0.7% | 68.4% | |
Description of Compliance With the Intervention | AJSM | 77.0% | 21.6% | 1.4% |
JBJS | 64.2% | 35.8% | 0.0% | |
JOR | 28.6% | 71.4% | 0.0% | |
OC | 83.3% | 16.7% | 0.0% | |
SJ | 56.3% | 43.8% | 0.0% | |
Mean | 61.9% | 37.9% | 0.3% | |
Intention-To-Treat Analysis | AJSM | 39.2% | 2.7% | 58.1% |
JBJS | 39.6% | 1.9% | 58.5% | |
JOR | 14.3% | 0.0% | 85.7% | |
Osteo | 63.9% | 0.0% | 36.1% | |
SJ | 50.0% | 0.0% | 50.0% | |
Mean | 41.4% | 0.9% | 57.7% | |
Was Clustering Accounted for in the Analysis? | AJSM | 0.0% | 0.0% | 100.0% |
JBJS | 0.9% | 0.0% | 99.1% | |
JOR | 0.0% | 0.0% | 100.0% | |
OC | 0.0% | 0.0% | 100.0% | |
SJ | 0.0% | 0.0% | 100.0% | |
Mean | 0.2% | 0.0% | 99.8% | |
Were the Groups Similar at Baseline? | AJSM | 74.3% | 4.1% | 21.6% |
JBJS | 71.7% | 6.6% | 21.7% | |
JOR | 42.9% | 0.0% | 57.1% | |
OC | 63.9% | 25.0% | 11.1% | |
SJ | 68.8% | 6.3% | 25.0% | |
Mean | 64.3% | 8.4% | 27.3% |