Classical form | Associated features | Atypical forms | Exclude from diagnosis of KLS |
---|---|---|---|
Onset in adolescence | Prominent mental and mood changes | One or more main symptoms absent | Cases with symptom inversion |
Episodic hypersomnia | Sometimes hypersexuality in attacks | Menstrual hypersomnolence | |
Excessive eating | Normal mental and physical findings between attacks | Organic hypothalamic pathology | |
Spontaneous recovery | Psychiatrically determined cases | ||
Male:female ratio 4:1 |