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Table 3 Comparison of both Ion chips. Comparison of PGM and Proton semiconductor-based Ion chips using five different factors

From: Comparison of two high-throughput semiconductor chip sequencing platforms in noninvasive prenatal testing for Down syndrome in early pregnancy

Chip type Total reads Read mapped ratio Mean read length Phred quality score (≥Q20) Correlation
Average SD/average Average SD Average SD Average SD Coefficient Significance
318 of PGM 4512893 0.2823 99.078 0.6635 147.871 10.693 0.8611 0.0374 0.9704 P < 0.0001
PI of Proton 7572314 0.1837 99.011 1.1470 147.842 5.669 0.8537 0.0225 0.9813 P < 0.0001
  1. SD standard deviation