Figure 1: Differential diagnosis of dependence by DSM-IV, ICD-10 and FTND. A The number of smokers dependent by the DMS-IV, ICD-10 and FTND. As DSM-IV and ICD-10 only diagnose the presence or absence of dependence, the ‘High’ (=6 score) and ‘Moderate’ (3-5 score) descriptors apply only to the FTND. B Venn diagram showing the number of smokers diagnosed as dependent by at least one measure in circles (n=131). The number of smokers diagnosed as nondependent by all measures is outside the circles (n=6).
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