PSP has an incidence of 7.4-18 cases (age-adjusted incidence)/100,000 population per year in males, and 1.2-6 cases/100,000 population per year in females [
4,
5]. PSP typically occurs in tall, thin subjects. Other risk factors are male gender and smoking. PSP typically occurs at rest [
6]. Precipitating factors may be atmospheric pressure changes (which may account for the often observed clustering of PSP) [
7] and exposure to loud music
Page Comments
Would you like to comment?
Join Diigo for a free account, or sign in if you are already a member.