Our data are consistent with the reports of other studies, but we must be cautious for general conclusions because the studies evaluating skills retentions differ significantly in study populations, training and tests programs/models, resting period, scoring systems, coaching and feedback, etc., as discussed in detail below.
For one trial, a judgement about blinding was not applicable because the study evaluated the effect of blind versus open trials on retention (Avenell 2004).
This information cannot be used to assess etiology, because the study evaluated associations with rotenone use that occurred after PD had been diagnosed.
One limitation is that participants had to experience sleep problems attributed to their FM symptoms to participate because the study evaluated sleep assessments.
The authors have no competing financial interest to declare because the study evaluates the natural history of chronic kidney disease and does not evaluate any products.
The comparison between the Airtraq device and Macintosh laryngoscopy was no longer possible because the five studies evaluating the Airtraq device did not explicitly use a stylet in the control group.
We excluded these percutaneous treatment cases from our analysis, because this study evaluated the risk of cholangitis after preoperative endoscopic treatment.
However, because previous studies evaluated the use of NSAIDs after the initial fracture occurrence, it is difficult to determine whether NSAID use in those studies was a result of pain associated with an undiagnosed healing complication or whether it was a risk factor for the healing complication (Giannoudis et al. 2000, Bhandari et al. 2003, Bhattacharyya et al. 2005).
They stated that it was not possible to determine the effect of sympathetic blockade on long-term pain relief because the authors of the two studies evaluated different outcomes.
Because some studies evaluated multiple screening tests and multiple types of prevention, these findings were abstracted and reported separately.
