Objective To investigate the correlation between serum iron and disease identification of community-acquired pneumonia(CAP)in middle-aged and elderly patients.Methods A total of 137 CAP patients hospitalized in Fuzhou First General Hospital Affiliated with Fujian Medical University from October 2019 to July 2024 were selected as objective.Logistic regression analysis were used to identify risk factors affecting serum iron levels.Receiver operating characteristic curve were used to evaluate predictive performance of independent influencing factors and combined applications.Results White blood cells,C-reactive protein,procalcitonin,D-dimer,infection site and range are risk factors for serum iron abnormalities.Area under the curve(AUC)of predicting serum iron abnormalities in CAP patients using above six indicators separately are 0.755,0.730,0.676,0.725,0.594,and 0.628.Combined applications predicted AUC was 0.883.Conclusion There is a certain correlation between changes in serum iron levels and recognition of CAP disease in middle-aged and elderly people.

Objective To investigate the correlation between serum iron and disease identification of community-acquired pneumonia(CAP)in middle-aged and elderly patients.Methods A total of 137 CAP patients hospitalized in Fuzhou First General Hospital Affiliated with Fujian Medical University from October 2019 to July 2024 were selected as objective.Logistic regression analysis were used to identify risk factors affecting serum iron levels.Receiver operating characteristic curve were used to evaluate predictive performance of independent influencing factors and combined applications.Results White blood cells,C-reactive protein,procalcitonin,D-dimer,infection site and range are risk factors for serum iron abnormalities.Area under the curve(AUC)of predicting serum iron abnormalities in CAP patients using above six indicators separately are 0.755,0.730,0.676,0.725,0.594,and 0.628.Combined applications predicted AUC was 0.883.Conclusion There is a certain correlation between changes in serum iron levels and recognition of CAP disease in middle-aged and elderly people.