Clinical characteristics of elderly patients with type 2 diabetes complicated with urinary tract infections and related risk factors

OBJECTIVE To explore the clinical characteristics of urinary tract infections in elderly patients with type 2diabetes and analyze the related risk factors so as to provide guidance for clinical data.METHODS From Feb 2010to Apr 2012,the clinical data of 1075elderly patients with type 2diabetes were retrospectively analyzed,then the patients complicated with urinary tract infections were assigned as the case group(132cases),the patients without urinary tract infections were set as the control group(943cases),the clinical and etiological characteristics were observed and compared between the two groups,and the logistic regression analysis was performed to analyze the related risk factors.RESULTS Of the 1075elderly patients with type 2diabetes,the urinary tract infections occurred in 132cases with the incidence rate of 12.3%.The difference in the age,course of diabetes,blood glucose,glycated hemoglobin,blood creatinine,or proportion of urinary lithiasis between the case group and the control was statistically significant(P0.05).There were 48(36.3%)cases of asymptomatic urinary tract infections.Totally 152strains of pathogens have been isolated from urine culture,including 95(62.5%)strains of gram-negative bacteria,49(32.2%)strains of gram-positive bacteria,and 8(5.3%)strains of fungi.The multivariate logistic regression analysis indicated that the course of diabetes(OR=4.209),level of blood glucose(OR=2.254),and complication of urinary lithiasis(OR=1.741)were the independent risk factors for the urinary tract infections in the patients with type 2diabetes.CONCLUSION The incidence of urinary tract infections is high in the elderly patients with type 2diabetes,and some of the patients are with asymptomatic symptoms.The gram-negative bacteria are the most common pathogens.The high level of blood glucose,long course of diabetes,and urinary lithiasis are the independent risk factors for the urinary tract infections in the patients with type 2diabetes.