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Summarise the paper in 200 words
What are the strengths of the study design?
What is multivariable logistic regression?
What is sensitivity, and how does it differ from PPV?
Calculate the positive likelihood ratio and negative likelihood ratio of scores of >2 and >4? What is the relevance of these values?
Table 2 shows the presence of bystander CPR was statistically significant when comparing good and poor outcomes. However, this was not included in the MIRACLE2 score. Why do you think this is?
What is the significance of an area under the curve of 0.90?
What are the limitations of the study?
The conclusion states the need for prospective studies to validate the score. What issue may they come across?