title: [Evaluation of 5 kinds of China-made enzyme immunoassay kits for antibody to hepatitis B virus surface antigen detection].
abstract: OBJECTIVE
  To Screen an EIA kit that fits best for using in serological detection of anti-HBs in the national investigation of hepatitis B virus infection.
  
  
  METHODS
  Top 5 kinds of kits on the best seller list of China-made anti-HBs EIA detection kits were selected and each was detected the anti-HBs panel(44 positive and 108 negative) 5 times. The s/n ratio of each test was recorded and transformed by log(s/n+1). ICC and CV, the reliability indices and AUC, pAUC and Se(FPR=e), the validity indices were calculated and compared between each kit.
  
  
  RESULTS
  The indices of ICC and CV of the 5 kinds of kits arranged in the same order of D, E, B, C and A, from the best to the worst and the differences between them were significantly important (Bootstrap method, P < 0.05), except for between E and B in the index of CV; the AUCs ranged from 0.980 to 0.993 and pAUCs did not differ with each other, except with kit A, the lowest one. Kit E had the highest sensitivity which was higher than kits B, C and D when the specificity was fixed at 0.97, and the later kits were higher than kit A(Bootstrap method, P < 0.05).
  
  
  CONCLUSIONS
  All the 5 kits are excellent and have synthetically considered the reliability and validity indicators and its function, kit D is the best.
authors.affiliation: State Key Laboratory for Infectious Disease Control and Prevention, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100052, China.
authors.forename: Feng
authors.initials: F
authors.lastname: Wang
authors.forename: Jing-Chen
authors.initials: JC
authors.lastname: Ma
authors.forename: Wen-Ying
authors.initials: WY
authors.lastname: Zhang
mesh_terms: D002681:China; D006509:Hepatitis B / Q000097:blood* / Q000276:immunology / Q000821:virology; D006510:Hepatitis B Antibodies / Q000097:blood* / Q000276:immunology; D006514:Hepatitis B Surface Antigens / Q000097:blood / Q000276:immunology*; D006515:Hepatitis B virus / Q000737:chemistry / Q000276:immunology; D006801:Humans; D007124:Immunoenzyme Techniques / Q000379:methods*; D011933:Reagent Kits, Diagnostic / Q000592:standards
chemical_list: D006510:Hepatitis B Antibodies; D006514:Hepatitis B Surface Antigens; D011933:Reagent Kits, Diagnostic