Table I.

Characteristics of cases in this study

Case	Age at onset of apnea	Clinical outcome	Suspected cause of apnea
1	9y	Sudden death at 15y	Laryngospasm or central apnea
2	37y	Sudden death at 45y	Laryngospasm or central apnea
3	5y	Persistent apneas at 9y	Central apnea and/or behavioral
4	18mo	Spontaneous resolution by 2y	Laryngospasm or mechanical (GI)
5	8y	Spontaneous resolution by 13y	Mechanical (GI)
6	NA	Sudden death at age 41y	Undetermined after autopsy
7	NA	Sudden death at age 34y	Undetermined after autopsy
8	NA	Sudden death at age 21y	Undetermined after autopsy

GI, gastrointestinal; NA, not available.