OBJECTIVE: To test the predictive power of comorbidity and of the interaction between age and comorbidity in geriatric patients with acute medical illness. DESIGN: Prospective observational study. SETTING: Medical and geriatric wards of an acute-care hospital. SUBJECTS: Three hundred and seventy patients over 70 years of age consecutively admitted in an 18-month period. MAIN OUTCOME MEASURE: In-hospital mortality. METHOD: On admission a multidimensional assessment was performed, and a comorbidity index and an age-comorbidity index developed on a comparable training population were calculated. The comorbidity index is based upon a scoring system that quantifies the prognostic weight of individual diseases, while the age-comorbidity index corrects the former for the age-related increase of the risk of death. The predictive power of variables univariately correlated with the outcome was tested by logistic regression. RESULTS: Death was independently predicted by clinical diagnosis of malnutrition (odds ratio = 1.87, confidence limits CL = 1.20-2.86), age-comorbidity index > 7 (odds ratio = 1.77, CL = 1.15-2.72), preadmission impairment in activities of daily living (odds ratio = 1.74, CL = 1.13-2.69), lymphocytopenia (odds ratio = 1.74, CL = 1.15-2.61). A weaker predictive model was obtained by substituting the comorbidity index for the index of age-comorbidity. Excluding comorbidity from the logistic regression greatly weakened the predictive model.
OBJECTIVE: To test the predictive power of comorbidity and of the interaction between age and comorbidity in geriatric patients with acute medical illness. DESIGN: Prospective observational study. SETTING: Medical and geriatric wards of an acute-care hospital. SUBJECTS: Three hundred and seventy patients over 70 years of age consecutively admitted in an 18-month period. MAIN OUTCOME MEASURE: In-hospital mortality. METHOD: On admission a multidimensional assessment was performed, and a comorbidity index and an age-comorbidity index developed on a comparable training population were calculated. The comorbidity index is based upon a scoring system that quantifies the prognostic weight of individual diseases, while the age-comorbidity index corrects the former for the age-related increase of the risk of death. The predictive power of variables univariately correlated with the outcome was tested by logistic regression. RESULTS:Death was independently predicted by clinical diagnosis of malnutrition (odds ratio = 1.87, confidence limits CL = 1.20-2.86), age-comorbidity index > 7 (odds ratio = 1.77, CL = 1.15-2.72), preadmission impairment in activities of daily living (odds ratio = 1.74, CL = 1.13-2.69), lymphocytopenia (odds ratio = 1.74, CL = 1.15-2.61). A weaker predictive model was obtained by substituting the comorbidity index for the index of age-comorbidity. Excluding comorbidity from the logistic regression greatly weakened the predictive model.
Authors: M Dramé; J L Novella; P O Lang; D Somme; N Jovenin; I Lanièce; P Couturier; D Heitz; J B Gauvain; T Voisin; B De Wazières; R Gonthier; J Ankri; C Jeandel; O Saint-Jean; F Blanchard; D Jolly Journal: Eur J Epidemiol Date: 2008-10-21 Impact factor: 8.082
Authors: Hassan Soubhi; Elizabeth A Bayliss; Martin Fortin; Catherine Hudon; Marjan van den Akker; Robert Thivierge; Nancy Posel; David Fleiszer Journal: Ann Fam Med Date: 2010 Mar-Apr Impact factor: 5.166
Authors: Jonathan L Hatch; Michael J Bauschard; Shaun A Nguyen; Paul R Lambert; Ted A Meyer; Theodore R McRackan Journal: Otolaryngol Head Neck Surg Date: 2018-03-27 Impact factor: 3.497