The correlationship and analysis of risk factors between diabetes with infectious diseases and body mass index

Abstract

Objective To investigate the correlationship between body mass index (BMI) and diabetes with infectious diseases and to analyze the risk factors of diabetes with infectious diseases. Methods The BMI of 590 diabetic patients with infectious diseases (observation group) and 610 diabetic patients without infectious diseases (control group) were analyzed by a case-control study from May 2012 to May 2014 in Changsha Central Hospital. Multivariate analysis of risk factors was performed by Logistic regression analysis. Results BMI of observation group was lower than that of the control group (t = 6.687, P < 0.001), and the distribution of BMI was significantly different between patients of the two groups (χ2 = 50.128, P < 0.001). The following respiratory tract infections (65.7%) was the most common, followed by digestive tract infection (11.59%), urinary tract infection (9.05%), upper respiratory tract infection (7.78%), skin (3.33%) and other sites (2.53%) in patients of observation group. Logistic regression analysis showed that the increase of BMI was the protective factor of diabetes mellitus with infectious diseases (OR = 0.778, 95%CI: 0.648-0.934). Age, chronic obstructive pulmonary disease and liver cirrhosis were the risk factors of diabetes mellitus with infectious diseases (OR = 1.614, 95%CI: 1.365-1.908; OR = 3.076, 95%CI: 1.745-5.424; OR = 6.717, 95%CI: 0.740-60.951), but liver cirrhosis as a risk factor has no statistical significance in the regression equation. Conclusions Diabetes with infectious diseases is related to BMI, but it is necessary to furtherly refine the analysis of the effect. In patients with diabetes, especially those who were elderly, complicated with chronic obstructive pulmonary diseases and liver cirrhosis should be paid special attention to the occurrence of infectious diseases. Key words: Body mass index; Diabetes; Infections