Table 1

Summary of sex, current age, age at onset, and genetic status of six people with PWS and psychotic illness with distressed perplexity, acute onset, and polymorphous and shifting symptomatology. All patients are above 13 years

Patient	Sex	Current age	Age at onset	Genetic abnormality
The results marked with * are compatible with maternal heterodisomy, but this could not be proven because paternal blood was not available.
1	M	17	14	IC defect
2	M	17	15	Heterodisomy
3	F	24	19	Heterodisomy*
4	M	30	15	Heterodisomy*
5	F	33	13	Heterodisomy
6	F	41	19	Heterodisomy*