title: [Comparison of pneumonia severity indices between modified A-DROP system and current A-DROP system predicting outcomes for patients hospitalized with community-acquired pneumonia].
abstract: BACKGROUND
  The A-DROP is a predicting pneumonia severity index which is adopted in the Japanese Respiratory Society (JRS) guidelines. For community-acquired pneumonia, we made a modified A-DROP, adding two new index items to the current A-DROP. Then, we retrospectively compared the modified A-DROP with the current A-DROP regarding 30-day mortality.
  
  
  RESULTS
  We analyzed consecutive 227 patients hospitalized with community-acquired pneumonia (mean age 79.0 years). The added index items were respiratory rate > or = 30/min and the presence or absence of underlying diseases. There were 16 fatalities (7.0%). In the extremely severe group, the sensitivities of the 30-day death and odds ratios were 19.9% and 9.5 in the current A-DROP, but 75.0% and 14.1 for the modified A-DROP, respectively. In addition, regarding the receiver-operating characteristic (ROC) area under the curve for the 30-day death ratio, the current A-DROP and modified A-DROP were 0.807 and 0.840, respectively.
  
  
  CONCLUSIONS
  The modified A-DROP improved the ability to predict outcomes compared with the current A-DROP.
authors.affiliation: Department of Infectious, Respiratory, and Digestive Medicine Control and Prevention of Infectious Diseases, Faculty of Medicine, University of the Ryukyus.
authors.forename: Masao
authors.initials: M
authors.lastname: Tateyama
authors.forename: Takashi
authors.initials: T
authors.lastname: Shinzato
authors.forename: Shusaku
authors.initials: S
authors.lastname: Haranaga
authors.forename: Futoshi
authors.initials: F
authors.lastname: Higa
authors.forename: Yui
authors.initials: Y
authors.lastname: Naha
authors.forename: Hideta
authors.initials: H
authors.lastname: Nakamura
authors.forename: Daisuke
authors.initials: D
authors.lastname: Tasato
authors.forename: Satomi
authors.initials: S
authors.lastname: Yara
authors.forename: Michio
authors.initials: M
authors.lastname: Koide
authors.forename: Jiro
authors.initials: J
authors.lastname: Fujita
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D017714:Community-Acquired Infections / Q000401:mortality*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011014:Pneumonia / Q000401:mortality*; D011379:Prognosis; D012189:Retrospective Studies; D012720:Severity of Illness Index