Methods in Evidence Synthesis seminar (MESS)
Randomized trials provide the most rigorous evidence on the effects of health interventions, but they can be compromised by poor methodology. Empirical studies of bias provide evidence that such aspects such as high quality randomization methods, blinding of participants and outcome assessors (where feasible) and transparent reporting of results can be associated with different effect sizes. Motivated by a large systematic review on interventions to prevent obesity in childhood, I will overview some of the key problems faced by researchers undertaking randomized trials in this area. We have examined risk of bias in results of over 200 randomized trials of diverse interventions. I will review some of the most common problems and outline how the conduct and reporting of trials in obesity might be improved in the future.
Join Zoom Meeting: https://bristol-ac-uk.zoom.us/j/92941331373?pwd=dmczb3lQRzFYQXZCTmlBcFpzNmFqUT09