Analysis and Discussion on Calculating Likelihood Ratio of DNA Mixture.
- Author:
Ying LIU
;
He REN
;
Lin-lin GAO
;
Yan SHI
;
Chong CHEN
;
Ya-cheng LIU
- Publication Type:Journal Article
- MeSH:
DNA/genetics*;
DNA Fingerprinting;
Humans;
Likelihood Functions
- From:
Journal of Forensic Medicine
2015;31(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 from ISFG.
RESULTS:The likelihood ratios were maximum by Clayton's method and recommendations from ISFO, followed by result of the unrestricted combinational method. The minimum likelihood ratio was obtained by p2 principle.
CONCLUSION:The unrestricted combinational method could give fUrthest consideration to both information preservation and appraiser protection.
