The vast majority of patients (89 and 87% of males and females, respectively) could be classified in the subgroups with lower scores (six points or less) which had a very limited risk of death (0 Á/2.5 and 0 Á/2.3% for men and women, respectively), whereas for patients in the highest score subgroup (11 points or more), the risk was 100% for men and 91% for women.