We characterized functional impact of narcolepsy on patients using a general health status measure, the Sickness Impact Profile (SIP). It has 136 items grouped into 12 categories and 2 dimensions.We ascertained patients with physician-diagnosed narcolepsy in King County, Washington using multiple overlapping methods over four years starting July 2001. We recruited 226 patients (mean age 48 years, 65
作者：Thanh G N, Ton；Nathaniel F, Watson；Thomas D, Koepsell；William T, Longstreth
来源：Sleep Science (Sao Paulo, Brazil) 2014 年 7卷 1期
