Objective: To explore the risk factors for hospitalization case fatality of patients with acute exacerbation of chronic obstructive pulmonary disease (AECOPD).
Methods: A retrospective review of medical records was performed for 182 hospitalized AECOPD patients at Nanfang Hospital from January 2010 to August 2012. Their general information, condition in stable stage, the results of spirometry, blood routine test, blood gas analysis and C-reactive protein (CRP) were collected and analyzed. The risk factors for mortality were analyzed by multivariable Logistic regression.
Results: Among them, 42 died during hospitalization. Univariate analysis revealed that 8 factors had significant differences between two groups (all P < 0.05): high exacerbation risk (death vs improvement group, 90.4% vs 70.0%) , low peripheral absolute lymphocyte count (73.8% vs 47.1%), high CRP (50.0% vs 17.1%), concurrent anemia (50.0% vs 27.1%), hypoproteinemia (71.4% vs 46.4%), hypercapnia (64.3% vs 30.7%), chronic pulmonary heart disease (76.1% vs 40.7%) and ischemic heart disease (19.0% vs 7.0%). By multiple Logistic regression analysis, high CRP (OR = 3.226, P = 0.009), hypercapnia (OR = 2.928, P = 0.013), chronic pulmonary heart disease (OR = 2.510, P = 0.045), low peripheral absolute lymphocyte count (OR = 2.488, P = 0.045) were the independent risk factors for hospitalization case fatality of AECOPD patients.
Conclusion: Low peripheral absolute lymphocyte count, high CRP, hypercapnia and chronic pulmonary heart disease were the independent risk factors for mortality in hospitalized AECOPD patients.
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