Analysis and Discussion on Calculating Likelihood Ratio of DNA Mixture
10.3969/j.issn.1004-5619.2015.06.007
- VernacularTitle:计算混合样本似然率方法的分析与探讨
- Author:
Ying LIU
;
He REN
;
Linlin GAO
;
Yan SHI
;
Chong CHEN
;
Yacheng LIU
- Publication Type:Journal Article
- Keywords:
forensic genetics;
statistics;
likelihood ratio;
mixture samples
- From:Journal of Forensic Medicine
2015;(6):441-444
- CountryChina
- Language:Chinese
-
Abstract:
Objective To analyze and discuss four methods of calculating likelihood ratio of DNA mixture. Methods In the case with CNAS-T0757 proficiency testing in 2013, the likelihood ratios were calculated and compared among four methods, including unrestricted combinatorial method, Clayton’s method, p2 principle method, and recommendations fromISFG . Results The likelihood ratios were maximumby Clayton’s method and recommendations fromISFG , followed by result of the unrestricted combinational method. The minimu mlikelihood ratio was obtained by p2 principle. Conclusion The unrestricted combi-national method could give furthest consideration to both information preservation and appraiser protection.
