The mortality rate due to chronic ITP varies but tends to be higher relative to the general population for any age range.  In a study conducted in Great Britain, it was noted that ITP causes an approximately 60 percent higher rate of mortality compared to gender- and age-matched subjects without ITP.  This increased risk of death with ITP is largely concentrated in the middle-aged and elderly.  Ninety-six percent of reported ITP-related deaths were individuals 45 years or older.  No significant difference was noted in the rate of survival between males and females.