This was done as part of a large data analysis project to implement a continuous model of DNA profile interpretation. The comparison of inter-laboratory stutter ratio data variation found that the maximum difference for any one laboratory from the average of the best fit determined by the model was 0.31 percent. These results indicate that stutter ratios calculated from samples analyzed using the same profiling kit are not expected to differ between laboratories, even those using different capillary electrophoresis platforms. A common set of laboratory parameters can be generated and used for profile interpretation at all laboratories using the same multiplex and cycle number, potentially reducing the need for individual laboratories to determine stutter ratios. (Publisher abstract modified)
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