Operative vs nonoperative treatment of displaced intra-articular calcaneal fracture: A meta-analysis of randomized controlled trials

Table 3 Methodological assessment of eligible randomized controlled trials using modified Jadad scale

Item assessed	Parmar 1993	O’Farrell 1993	Chrintz 1993	Thordarson 1996	Buckley 2002	Ibrahim 2007	Nouraei 2011	Agren 2013
Was the study described as randomized?	√	×	√	√	√	√	√	√
Was the method of randomization appropriate?	?	?	?	√	√	?	?	√
Was the study described as blinded?	×	×	×	√	√	×	×	√
Was the method of blinding appropriate?	?	?	?	?	?	?	?	?
Was there a description of withdrawals and dropouts?	×	√	√	√	√	√	√	√
Was there a clear description of the inclusion/exclusion criteria?	×	×	√	√	√	√	√	√
Was the method used to assess adverse effects described?	×	×	×	×	√	×	×	×
Was the method of statistical analysis described?	√	√	√	√	√	√	√	√
Total score	2	2	4	5.5	6.5	4	4	5.5

√: Yes; ×: No; ?: Not described.