title: MedisGroups data bases. The impact of data collection guidelines on predicting in-hospital mortality.
authors.affiliation: Division of General Medicine, Harvard Medical School, Beth Israel Hospital, Boston, MA 02215.
authors.forename: L I
authors.initials: LI
authors.lastname: Iezzoni
authors.forename: E K
authors.initials: EK
authors.lastname: Hotchkin
authors.forename: A S
authors.initials: AS
authors.lastname: Ash
authors.forename: M
authors.initials: M
authors.lastname: Shwartz
authors.forename: Y
authors.initials: Y
authors.lastname: Mackiernan
mesh_terms: D001900:Boston / Q000453:epidemiology; D003625:Data Collection / Q000379:methods*; D016206:Databases, Bibliographic; D017052:Hospital Mortality; D006801:Humans; D007297:Inpatients / Q000706:statistics & numerical data; D015588:Observer Variation; D017063:Outcome Assessment, Health Care; D011336:Probability; D012720:Severity of Illness Index