Diagnostic issues at assessment
AN is a syndrome involving considerable symptom variability
between and within cases over time. Cross-over
between AN subtypes is common, suggesting that those
with AN-Restricting Type and AN-Binge-Eating/Purging
Type may be phases of the same condition rather than
distinct groups [32]. Diagnostic weight cut-offs are debated
[9] and the severity of psychological versus physical
symptomatology may not always highly correlate, albeit
these will be highly intertwined at extremely low weights
due to the behavioural, psychological, and cognitive effects
of starvation [33]. The following sections discuss key
issues regarding diagnostic variability.