Meta Analysis of FCM DNA Ploidy in Distinguishing Benign Tumor from Malignant Ones / 中国医科大学学报

ABSTRACT

Objective To evaluate the application value of DNA ploidy detection using flow cytometry method(FCM)in malignant tumor identifi?cation,so as to provide the theoretical basis for the clinical diagnosis of malignant tumors. Methods Two researchers finished the literature screen?ing independently,and all the literatures were given the secondary screening according to the inclusion and exclusion criteria. The included literature data was analyzed by Meta?DiSc 1.4,including heterogeneity test,sensitivity,specificity,diagnostic odds ratio(DOR)and summary receiver operat?ing characteristic(SROC)etc. Results Totally 12 literatures were included in the study finally,including a total of 1 340 subjects consisting of 516 cases with malignant tumor and 824 cases with benign tumor. Heterogeneity inspection results showed that the Spearman correlation coefficient of sensitivity logarithm and(1-specificity)logarithm was-0.343 and there was no threshold effect(P=0.275). DOR curves was Cochran?Q=26.49 (P=0.005 5),indicating the heterogeneity was caused by non threshold effects. Combined statistical quantity was calculated with a random effects model and the results were as followingsthe sensitivity was 0.72(95%CI0.68?0.76,I2=50.1%)and the specificity 0.84(95%CI0.81?0.86,I2=65.5%). SROC curve drawing,DNA ploidy detection of benign and malignant tumors showed AUC=0.845 3 and Q*=0.776 8. Conclusion FCM DNA heteroploid has a high accuracy for diagnosis of malignant tumor,which can be an important supporting means for the discrimination between benign and malignant tumor.