TY - JOUR
T1 - The effects of preexisting medical comorbidities on mortality and length of hospital stay in acute burn injury
T2 - Evidence from a national sample of 31,338 adult patients
AU - Thombs, Brett D.
AU - Singh, Vijay A.
AU - Halonen, Jill
AU - Diallo, Alfa
AU - Milner, Stephen M.
PY - 2007/4
Y1 - 2007/4
N2 - OBJECTIVE: To determine whether and to what extent preexisting medical comorbidities influence mortality risk and length of hospitalization in patients with acute burn injury. SUMMARY BACKGROUND DATA: The effects on mortality and length of stay of a number of important medical comorbidities have not been examined in acute burn injury. Existing studies that have investigated the effects of medical comorbidities on outcomes in acute burn injury have produced inconsistent results, chiefly due to the use of relatively small samples from single burn centers. METHODS: Records of 31,338 adults who were admitted with acute burn injury to 70 burn centers from the American Burn Association National Burn Repository, were reviewed. A burn-specific list of medical comorbidities was derived from diagnoses included in the Charlson Index of Comorbidities and the Elixhauser method of comorbidity measurement. Logistic regression was used to assess the effects of preexisting medical conditions on mortality, controlling for demographic and burn injury characteristics. Ordinal least squares regression with a logarithmic transformation of the dependent variable was used to assess the relationship of comorbidities with length of stay. RESULTS: In-hospital mortality was significantly predicted by HIV/AIDS (odds ratio [OR] = 10.2), renal disease (OR = 5.1), liver disease (OR = 4.8), metastatic cancer (OR = 4.6), pulmonary circulation disorders (OR = 2.9), congestive heart failure (OR = 2.4), obesity (OR = 2.1), non-metastatic malignancies (OR = 2.1), peripheral vascular disorders (OR = 1.8), alcohol abuse (OR = 1.8), neurological disorders (OR = 1.6), and cardiac arrhythmias (OR = 1.5). Increased length of hospital stay among survivors was significantly predicted by paralysis (90% increase), dementia (60%), peptic ulcer disease (53%), other neurological disorders (52%), HIV/AIDS (49%), renal disease (44%), a psychiatric diagnosis (42%), cerebrovascular disease (41%), cardiac arrhythmias (40%), peripheral vascular disorders (39%), alcohol abuse (36%), valvular disease (32%), liver disease (30%), diabetes (26%), congestive heart failure (23%), drug abuse (20%), and hypertension (17%). CONCLUSIONS: A number of preexisting medical conditions influence outcomes in acute burn injury. Patients with preburn HIV/AIDS, metastatic cancer, liver disease, and renal disease have particularly poor prognoses.
AB - OBJECTIVE: To determine whether and to what extent preexisting medical comorbidities influence mortality risk and length of hospitalization in patients with acute burn injury. SUMMARY BACKGROUND DATA: The effects on mortality and length of stay of a number of important medical comorbidities have not been examined in acute burn injury. Existing studies that have investigated the effects of medical comorbidities on outcomes in acute burn injury have produced inconsistent results, chiefly due to the use of relatively small samples from single burn centers. METHODS: Records of 31,338 adults who were admitted with acute burn injury to 70 burn centers from the American Burn Association National Burn Repository, were reviewed. A burn-specific list of medical comorbidities was derived from diagnoses included in the Charlson Index of Comorbidities and the Elixhauser method of comorbidity measurement. Logistic regression was used to assess the effects of preexisting medical conditions on mortality, controlling for demographic and burn injury characteristics. Ordinal least squares regression with a logarithmic transformation of the dependent variable was used to assess the relationship of comorbidities with length of stay. RESULTS: In-hospital mortality was significantly predicted by HIV/AIDS (odds ratio [OR] = 10.2), renal disease (OR = 5.1), liver disease (OR = 4.8), metastatic cancer (OR = 4.6), pulmonary circulation disorders (OR = 2.9), congestive heart failure (OR = 2.4), obesity (OR = 2.1), non-metastatic malignancies (OR = 2.1), peripheral vascular disorders (OR = 1.8), alcohol abuse (OR = 1.8), neurological disorders (OR = 1.6), and cardiac arrhythmias (OR = 1.5). Increased length of hospital stay among survivors was significantly predicted by paralysis (90% increase), dementia (60%), peptic ulcer disease (53%), other neurological disorders (52%), HIV/AIDS (49%), renal disease (44%), a psychiatric diagnosis (42%), cerebrovascular disease (41%), cardiac arrhythmias (40%), peripheral vascular disorders (39%), alcohol abuse (36%), valvular disease (32%), liver disease (30%), diabetes (26%), congestive heart failure (23%), drug abuse (20%), and hypertension (17%). CONCLUSIONS: A number of preexisting medical conditions influence outcomes in acute burn injury. Patients with preburn HIV/AIDS, metastatic cancer, liver disease, and renal disease have particularly poor prognoses.
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U2 - 10.1097/01.sla.0000250422.36168.67
DO - 10.1097/01.sla.0000250422.36168.67
M3 - Article
C2 - 17414613
AN - SCOPUS:34147143376
SN - 0003-4932
VL - 245
SP - 629
EP - 634
JO - Annals of surgery
JF - Annals of surgery
IS - 4
ER -