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Oncology Study Missing Assessment Denominator Tool

Explicit research assessment denominator policy; no clinical positive outcome or statistical missingness mechanism is inferred.

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Description

Explicit research assessment denominator policy; no clinical positive outcome or statistical missingness mechanism is inferred.

Research lesion records distinguish measured dimensions, geometric size models, censoring conventions, assessment denominators, and follow-up timing. An axis product, percent change, or coverage measure describes only its stated inputs and model. Such arithmetic does not automatically implement a clinical response criterion or validate a study.

Explicit research assessment denominator policy; no clinical positive outcome or statistical missingness mechanism is inferred.

When to use this tool

Use Oncology Study Missing Assessment Denominator when you need this research measurement, assessment-base, source, or event-time calculation.

How to use the tool and how it works

  1. Enter scheduled, assessed, unevaluable, positive, excludeUnevaluable. Use the units and conventions below.
  2. Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
  3. Read analysisDenominator, positiveFraction, assessedFraction. Use the output convention below.

Require integer scheduled>=1, assessed within 1..scheduled, unevaluable within 0..assessed-1, and positive<=assessed-unevaluable. Choose analysisDenominator=assessed-unevaluable if excludeUnevaluable, otherwise scheduled. Return positiveFraction and assessedFraction=assessed/scheduled.1

Input fieldMeaning and unitsAccepted input
scheduledScheduledRequired. Safe integer; minimum 1.
assessedAssessedRequired. Safe integer; minimum 1.
unevaluableUnevaluableRequired. Safe integer; minimum 0.
positivePositiveRequired. Safe integer; minimum 0.
excludeUnevaluableExclude UnevaluableRequired. Boolean.
Output fieldInterpretationReturned shape
analysisDenominatorEvaluable assessed count when excluding; otherwise all scheduled assessments.Required. Safe integer.
positiveFractionPositive FractionRequired. Finite number.
assessedFractionAssessed FractionRequired. Finite number.
json
{
  "input": {
    "scheduled": 100,
    "assessed": 80,
    "unevaluable": 10,
    "positive": 35,
    "excludeUnevaluable": true
  },
  "output": {
    "analysisDenominator": 70,
    "positiveFraction": 0.5,
    "assessedFraction": 0.8
  }
}

Limitations and assumptions

  • The false branch uses all scheduled assessments, not all assessed records. This supplied denominator policy does not infer missing/unevaluable outcomes or implement a complete trial estimand, response criterion, or clinical assessment.
  • Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
  • Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.

Alternative or Complementary methods

Use the intended study protocol and a complete measurement or analysis model for a broader conclusion. Verify lesion definitions, censoring, measurement correspondence, time anchors, and missing-assessment policy.

References

  1. Calculation and input contract: oncology/oncology-study-missing-assessment-denominator — tool.io

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