This blog is a critical appraisal of a Randomized Controlled Trial (RCT) comparing the effects of general exercise, motor control exercise and spinal manipulative therapy on function and perceived effect of intervention in patients with chronic back pain.
TaskExchange has launched new features especially for evidence newcomers! TaskExchange is Cochrane’s online platform that connects people needing help on health evidence projects (Cochrane and non-Cochrane) with people who have the time and skills to help out.
Blinding is a common element used in rigorously designed trials. Most people are familiar with the general concept but what is its purpose and what is the best way to perform it? This blog by Neelam Khan explores both of these questions and discusses ways to tackle situations where blinding cannot be done.
In 2018 Cochrane UK, along with Students 4 Best Evidence, will be offering two 4-week placements: Monday 4th June to Friday 29th June and Monday 1st October to Friday 26th October. This blog explains more about what you can expect from this elective and how to apply.
This is the twenty-sixth blog in a series of 36 blogs explaining 36 key concepts we need to be able to understand to think critically about treatment claims.
This blog explains that for outcomes measured on a scale (e.g. weight, or pain) the difference between the average in one treatment group and the average in a comparison group may not make it clear how many people experienced a big enough change (e.g. in weight or pain) for them to notice it, or that they would regard as important.
In this blog, Julie Duncan Millar, PhD Student and Physiotherapist, reflects on the difficulties of comparing and sharing upper limb rehabilitation trial data and proposes a condensed toolkit of measures recommended for researchers to use in future trials.
This is a Portuguese translation of the third in a series of 36 blogs explaining 36 Key Concepts we need to be able to understand to think critically about treatment claims. With thanks to Izabel Oliveira and Cochrane Brazil for the translation.
This blog explains that the fact that a treatment outcome (i.e. a potential benefit or harm) is associated with a treatment does not mean that the treatment caused the outcome.
In this blog, Saul Crandon provides an overview of the Academic Foundation Programme, which allows doctors to explore a range of academic interests, gain additional qualifications, build their portfolio and experience life as a clinical academic.
Pain is a recurrent undesirable side effect in orthodontic treatment. This blog by Izabel Oliveira introduces pharmacological and non-pharmacological alternatives for orthodontic pain management.
This is the twenty-fifth blog in a series of 36 blogs explaining 36 key concepts we need to be able to understand to think critically about treatment claims.
Relative effects (e.g. the ratio of the probability of an outcome in one treatment group compared with that in a comparison group) are insufficient for judging the importance of the difference (between the frequencies of the outcome). A relative effect may give the impression that a difference is larger than it actually is when the likelihood of the outcome
is small to begin with.
Healthcare guidelines are an invaluable aspect of evidence-based healthcare. This blog by Neelam sheds some light on what a Guideline is, and what is isn’t.
This is the twenty-fourth blog in a series of 36 blogs explaining 36 key concepts we need to be able to understand to think critically about treatment claims.
Comparisons of treatments often report results for selected groups of participants in an effort to assess whether the effect of a treatment is different for different types of people (e.g. men and women or different age groups). These analyses are often poorly planned and reported. Most differential effects suggested by these “subgroup results” are likely to be due to the play of chance and are unlikely to reflect true differences.
This is the twenty-third blog in a series of 36 blogs explaining 36 key concepts we need to be able to understand to think critically about treatment claims.
Many fair comparisons never get published, and outcomes are sometimes left out. Those that do get published are more likely to report favourable results. As a consequence, reliance on published reports sometimes results in the beneficial effects of treatments being overestimated and the adverse effects being underestimated.
How accurately have the media reported on the link between dentures and frailty? This blog by Neelam Khan looks at the evidence behind the claim that “Dentures put wearers at risk of malnutrition because they can’t chew healthy food”.