(2)Interpreting meta-analysis: What were the results? What measure was used,how large was the effect? How are the results presented? Reading a Forest Plot (Study Figure 3.from:Chest-compression-only versus standard tation:a meta-analysis by Hipn M.Selig H.E.Nagele o P and ther answer the questions below) 1.How many studies are there? 2.Which do you think is(a)the largest study(b)the smallest study? 3.For how many studies are the central estimates in favour of treatment?In favour of control? 4.How many studies are(a)statistically significant(b)not statistically significant? 5.What is the overall result?(Further question:what is the number needed to treat?) 6.What do you think about the heterogeneity of this study? (2) Interpreting meta-analysis: What were the results? What measure was used, how large was the effect? How are the results presented? Reading a Forest Plot (Study Figure 3, from: Chest-compression-only versus standard cardiopulmonary resuscitation: a meta-analysis by Hűpfl M., Selig H.F., Nagele P., and then answer the questions below) 1. How many studies are there? 2. Which do you think is (a) the largest study (b) the smallest study? 3. For how many studies are the central estimates in favour of treatment? In favour of control? 4. How many studies are (a) statistically significant (b) not statistically significant? 5. What is the overall result? (Further question: what is the number needed to treat?) 6. What do you think about the heterogeneity of this study?