Reference standard negatives were samples with both test results negative, or those with one test negative and the other either not done or with an undetermined result.
The SNP PCR reactions having an undetermined result in both PCR reactions were repeated and a SNP call was able to be determined for every SNP for every sample.
Thirty-nine SNP sample PCR runs resulted in one of the two SNP PCR reactions having a failed or undetermined result.
Excluded from analysis were all samples with the dipstick RDT or both reference standard test results either missing or undetermined (samples with contaminated culture, inhibited PCR and undefined RDT results were classified as having undetermined results).
None of the studies reported the undetermined results or withdrawals.
Of the 31 samples that were not evaluable five were due to low DNA concentration, seven to undetermined results, and 19 samples were not available.
Nonetheless, it is noteworthy that the sensitivity may be overestimated in our study under the hypothesis where the inflammation may be symptomatic since none of the studies provided withdrawal and undetermined results, and the ascertainment of AF was passive.
However, a significant number of undetermined results (31/612) were observed for the qPCR-serum technique, with a median Ct value of 37. Taking into account that this is an intravascular helminthic infection, where a high Ct value indicates a low quantity of S. mansoni template DNA, in terms of epidemiological analysis, what would be considered as a qPCR positive result in fecal and serum samples?
But exit polls, like all polls, have a margin of error, and the actual vote in Florida was a surprise, as was the vote in Ohio, despite the still-undetermined result.
Fox's year is still undetermined, pending results through the rest of the year for "Avatar," which cost $310 million to produce (before deducting tax credits).
The second step of the analysis attempted to resolve cases with "undetermined" initial results based on more detailed analysis that included intra-patient distribution of viral genetic distances, shape analysis of highlighter plots, recombination analysis, and estimation of tMRCA.
