ObjectiveTo systematically review the diagnostic value of HBV Pre-S1Ag tested by enzyme-linked immunosorbent assay (ELISA) in patients with hepatitis B virus replication.
MethodsSuch databases as PubMed, EMbase, The Cochrane Library (Issue 3, 2014), CBM, CNKI, VIP and WanFang Data were electronically and comprehensively searched for relevant studies on the diagnostic value of HBV Pre-S1Ag tested by ELISA in patients with hepatitis B virus replication from inception to May 1st, 2014. Relevant journals were also manually retrieved. Two reviewers independently screened literature according to inclusion and exclusion criteria, extracted data, and assessed methodological quality of included studies. Meta-analysis was then conducted using Meta-Disc 1.4 software.
ResultsFinally, fifteen studies were included, involving 1 994 patients with hepatitis B diagnosed by the gold standard and 526 patients with non-hepatitis B diseases. The results of meta-analysis showed (Sen=0.76, 95%CI 0.74 to 0.78; Spe=0.90, 95%CI 0.88 to 0.91; +LR=8.54, 95%CI 4.25 to 17.15;-LR=0.17, 95%CI 0.10 to 0.27; DOR=65.12, 95%CI 24.91 to 170.28; AUC=0.943 0, SE=0.018 1; Q*=0.881 3, SE=0.023 4).
ConclusionHBV Pre-S1Ag tested by ELISA has certain value in the diagnosis of patients with hepatitis B virus replication. Due to poor methodological quality of the included studies, the above conclusion should be verified by conducting high quality diagnostic tests.
Objective To systematically review the diagnostic value of anti-HCV in serum tested by the third-generation enzyme-linked immunosorbent assay (ELISA 3) in patients with hepatitis C. Methods Such databases as PubMed, MEDLINE, EMbase, The Cochrane Library (Issue 1, 2013), EBSCO, CBM, CNKI, VIP and WanFang Data were electronically and comprehensively searched for relevant studies on the diagnostic value of anti-HCV in serum tested by ELISA 3 in patients with hepatitis C from inception to January 1st, 2013. Relevant journals were also manually retrieved. QUADAS items were used to evaluate the quality of the included studies. Then meta-analysis was performed using Meta-Disc 1.4 software to calculate pooled effect size in sensitivity (SEN), specificity (SPE), likelihood ratio (±LR), diagnostic odds ratio (DOR) and summary receiver operating characteristic curve (SROC curve), and area under the curve (AUC) as well. Results Finally, nine studies were included, involving 1 182 patients with hepatitis C diagnosed by the gold standard and 4 764 patients with non-hepatitis C diseases. The results of meta-analysis using random model showed (SEN=0.96, 95%CI 0.95 to 0.97; SPE=0.96, 95%CI 0.96 to 0.97; +LR=42.21, 95%CI 10.23 to 174.23; –LR=0.02, 95%CI 0.01 to 0.09; DOR=1 635.89, 95%CI 372.37 to 7 186.83; AUC=0.996 5). Conclusion Anti-HCV in serum tested by ELISA 3 has fairly high value in the diagnosis of patients with hepatitis C.
