The concept that patients should make decisions about their treatment in partnership with healthcare professionals has become firmly enshrined in NHS strategy and policy documents. Although there is a risk that the impact of the adopted mantra “no decision about me, without me” will become blunted by overuse, it is reassuring to know that shared decision-making is finally being taken seriously.1,2 However, shared decision-making implies shared knowledge, and patients need meaningful information about their treatment options, in order to take fully-informed decisions. Is the information we …