Effectiveness of physiotherapy exercise following hip arthroplasty for osteoarthritis: a systematic review of clinical trials

Table 2 Quality component checklist and quality evaluation of seven trials included in the review (Kaae et al.,1989 excluded*).

Does the study/author information adequately contain the following:	Jan et al., 2004	Johnsson et al., 1988	Nyberg & Kreuter, 2002	Patterson et al., 1995	Sashika et al., 1996	Suetta et al., 2004	Trudelle-Jackson & Smith 2004
Rationale for study	Y	Y	Y	Y	Y	Y	Y
Eligibility criteria	Y	P	Y	Y	Y	Y	Y
Recruitment method	N	N	P	P	Y	P	Y
Settings and location of study	P	P	Y	Y	P	P	P
Intervention	Y	P	Y	P	Y	P	Y
Objectives/hypotheses	P	P	N	P	P	Y	Y
Defined outcome measures	Y	P	N	N	P	Y	Y
Quality enhancers (e.g. multiple observations)	Y		N	P	N	P	Y
Sample size determination	Y	N	N	N	P	Y	N
Randomisation	Alternately assigned	Y	Alternately assigned	Assigned by location	Not randomised	Y	Y
Randomisation sequence generation	Y	N	Y	Y	I	Y	Y
Allocation concealment	N	N	Y	N	N	N	N
Randomisation implementation methods	N	N	N	N	N	N	N
Blinding – participant	N	N	N	N	N	N	Y
Blinding – of those administering the intervention	N	N	N	N	N	P	N
Blinding – outcome/assessments	Y	N	Y	Y	N	Not all blinded	Not blinded
Statistical methods	Y	P	Y	Y	N	Y	Y
Flow of participants through each stage	Y	U	Y	N	P	P	Y
Recruitment and follow up dates	N	N	Y	N	N	P	N
Baseline demographics	Y	N	P	Y	Y	Y	Y
Numbers analysed (and ITT)	Y	U	P	U	Y	P	Y
Summary of Results	P	P	P	Y	P	Y	Y
Estimated effect sizes	N	P	N	N	N	N	N
Precision	N	N	N	Y	N	Y	N
Results for each outcome	Y	Y	Y	Y	P	Y	Y
Ancillary analyses	P	N	I	N	N	N	N
Adverse events	P	P	Y	N	P	N	N
Interpretation	P	P	P	P	N	N	P
Generalisability	P	P	Y	P	N	N	N
Results placed into context	P	P	P	P	P	P	P
Judged to be of sufficient quality for inclusion in explanatory meta-analyses?	N	N	N	N	N	Y	Y for Oxford hip score only

Key: Y = Yes, included in paper/information to meet CONSORT level standards. N = not provided in paper/information. I = considered inappropriate/impossible.
P = Partially evident in paper/information. U = not fully provided/explained in paper/information and therefore unclear/ambiguous. *This trial was written up in summary form rather than as a journal paper.