Microbiology-PTM-OMA_Modules_1-5

OMA Collaborative (MLV) Study Designs

Method Type # Valid Data Sets Study Design per Collaborator

Statistics

Qualitative

≥10

1 Matrix 12 Replicates High 12 Replicates Low (fractional pos.*) 12 Replicates Noninoculated

LPOD, dLPOD + CI dLPOD CI must include “0” S r with 95% CI S R with 95% CI S L FP/FN rates in text of report

Quantitative ≥8

1 Matrix 2 Replicates High 2 Replicates Medium 2 Replicates Low [2 Replicates Noninoculated]

Log(10) transform DOM + 95% CI S r S R

*Fractional positives defined as LPOD = 0.25‐0.75