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Fig. 3 | Trials

Fig. 3

From: A meta-analysis of temporal changes of response in the placebo arm of surgical randomized controlled trials: an update

Fig. 3

Meta-analysis of placebo response in trials with pain as the primary outcome. Left panel shows analysis across all time points. Right panel shows analysis across all visits. The thick line refers to the study average trend over time, i.e., the fixed effects part of the model. The shaded area is the 95% confidence interval. The thick grey dashed line represents the line of null effect

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