TY - JOUR T1 - Towards evidence based medicine for paediatricians JF - Archives of Disease in Childhood JO - Arch Dis Child SP - 594 LP - 594 DO - 10.1136/archdischild-2015-308813 VL - 100 IS - 6 AU - Bob Phillips Y1 - 2015/06/01 UR - http://adc.bmj.com/content/100/6/594.2.abstract N2 - I-squaredNo, not −1, the self-multiplication of that fancy imaginary number that helps aircraft designers make wings work properly, but a (semi) quantitative assessment of how much heterogeneity there is in a meta-analysis: I2.You will recall that the idea of heterogeneity (mixed-up-ness) comes in both statistical and clinical flavours.1 This measure—(I2)—assesses the statistical aspect. It is often to be found … ER -