epidemiology there are two sets of figures one for the population of people with mental illness numbers ranging from through to there is then a set of figures for the general population ranging from under the heading that within the general population the variation is less this statement is patently false the fact that only of the mentally ill population in one country have the disorder means that the variation between that and the figure would be huge statement should be removed also why does this second table exist there are only figures in it is it relevant or important