This is an archived version of the Handbook. For the current version, please go to or search for this chapter here.

12.6  Interpreting results from continuous outcomes (including standardized mean differences)

12.6.1 Meta-analyses with continuous outcomes

12.6.2 Re-expressing SMDs using rules of thumb for effect sizes

12.6.3 Re-expressing SMDs by transformation to odds ratio

Table 12.6.a NNTs equivalent to specific SMDs for various given 'proportions improved' in the control group

12.6.4 Re-expressing SMDs using a familiar instrument