Outcomes of dual-mobility total hip arthroplasty versus bipolar hemiarthroplasty for patients with femoral neck fractures: a systematic review and meta-analysis

Table 2 Quality assessment of the included studies by modified Jadad Scale

Item assessed	Nonne, 2019 [9]	Ukaj, 2019 [10]	Iorio, 2019 [11]	Fahad, 2019 [12]	Kim, 2018 [13]	Boukebous, 2018 [14]	Ochi, 2017 [16]	Bensen, 2014 [15]
Was the study described as randomized?	No	Yes	Yes	No	No	No	No	No
Was the method of randomization appropriate?	No	Yes	Yes	No	No	No	No	No
Was the study described as blinded?	No	Yes	Yes	No	No	No	No	No
Was the method of blinding appropriate?	No	Yes	Yes	No	No	No	No	No
Was there a description of withdrawals and dropouts?	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Was there a clear description of the inclusion/exclusion criteria?	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Was the method used to assess adverse effects?	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Was the method of statistical analysis described?	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Scores	4	8	8	4	4	4	4	4

ISSN: 1749-799X