To define and validate a practical risk stratification scheme based on administrative data for use in identifying patients at high, medium, and low risk of requiring emergency hospital care for asthma.Retrospective cohort.Predictors in 1999 were evaluated in relation to 2000 asthma emergency hospital care (any asthma hospitalization or emergency department visit) in a training set (n = 8789, 2000 emergency hospital care = 5.5
作者：Michael, Schatz；Randy, Nakahiro；Christine H, Jones；Richard M, Roth；Anita, Joshua；Diana, Petitti
来源：The American journal of managed care 2004 年 10卷 1期
