ABSTRACT
Objective To investigate the application value of single detection and combined detection of 4 kinds of inflammatory indicators of procalcitonin (PCT ) ,high sensitivity C-reactive protein(hs-CRP) ,interleu-kin-6(IL-6) and white blood cell(WBC) in diagnosing type 2 diabetes mellitus(T2DM) bloodstream by analy-zing the levels of peripheral blood PCT ,hs-CRP ,IL-6 and WBC in the T2DM bloodstream infection group and T2DM non-bloodstream infection group .Methods The clinical data in 85 patients with T2DM bloodstream in-fection (T2DM bloodstream infection group ) and contemporaneous 80 cases of T2DM non-bloodstream infec-tion(T2DM non-bloodstream infection group) in this hospital from January 2013 to July 2016 were retrospec-tively analyzed .The levels of various inflammatory indicators in peripheral blood were analyzed .The receiver operating characteristic(ROC) curve of various inflammatory indicators was drawn ,the area under the curve (AUC) and the best cut-off value were calculated .The detection schemes included 24 kinds of schemes such as the single indicator ,2-indicator ,3-indicator and 4-indicator .Results The levels of PCT ,hs-CRP ,IL-6 and WBC in the T2DM bloodstream infection group were significantly higher than those in the T 2DM non-blood-stream infection group ,the difference was statistically significant (P<0 .05) .AUC of PCT ,hs-CRP ,IL-6 and WBC were 0 .909 ,0 .818 ,0 .838 and 0 .760 respectively ,with best cut-off values of 0 .493 ng/mL ,11 .19 ng/mL ,40 .95 pg/mL and 11 .87 × 109/L respectively .The Youden index of PCT was highest (0 .65) and the ac-curacy of IL-6 was highest (83 .33％ ) in the single indicator detection scheme .The Youden index and accuracy of the scheme of PCT/hs-CRP and PCT+hs-CRP+IL-6 were highest in the combined detection scheme .Con-clusion PCT detection has the prominent value in the assisted diagnosis of T 2DM bloodstream infection .Inthe combined detection scheme ,PCT/hs-CRP and PCT+hs-CRP+IL-6 have the highest value in the assisted diagnosis in T2DM bloodstream infection .