PrevIQ Docs

Panel classifications

How PrevIQ sorts every organism into INCLUDE, WATCH, or RARE for panel design.

When you're deciding what belongs on a panel, raw rates aren't enough — you need a defensible rule that accounts for both how common an organism is and how solid the evidence is. PrevIQ applies one consistent rule to produce three buckets.

The three buckets

  • INCLUDE — Clinically actionable — strong enough to put on the panel.
  • WATCH — Present but lower — monitor it; revisit as more data arrives.
  • RARE — Too uncommon or too little data to justify inclusion.

The exact rule

Classification depends on the prevalence rate and whether the sample is reportable (Tier A or B):

Classification Condition
INCLUDE rate ≥ 5% and Tier A/B (n ≥ 30)
WATCH rate ≥ 1% and Tier A/B (n ≥ 30)
RARE everything else — including all Tier C, regardless of rate

Important

Sample size overrides rate. A Tier C organism (n < 30) is always RARE, even at a 100% apparent rate, because the sample is too small to support a clinical call. This is what keeps panel recommendations defensible.

Decision flow

  1. Is the sample reportable (Tier A/B)?

    No → RARE. Yes → continue.

  2. Is the rate ≥ 5%?

    Yes → INCLUDE. No → continue.

  3. Is the rate ≥ 1%?

    Yes → WATCH. No → RARE.

Worked examples

Organism Rate n Tier Result Why
Organism A 12.0% 540 A INCLUDE Reportable and ≥ 5%.
Organism B 2.3% 210 A WATCH Reportable, between 1% and 5%.
Organism C 0.4% 180 A RARE Reportable but below 1%.
Organism D 40.0% 12 C RARE High rate, but n < 30 — not reportable.
Organism E 8.0% 65 B INCLUDE Reportable (Tier B) and ≥ 5%.

Where you'll see this

  • On the Reports page, the panel recommendation view lists every organism in a syndrome with its bucket, plus a header count of INCLUDE / WATCH / RARE.
  • Via the API at /reports/panel-recommendation.

Tip

The 5% and 1% thresholds are OSPRI's standard panel-design cut points. If a specific engagement needs different thresholds, talk to your OSPRI contact — don't eyeball it from raw rates.