Fertility Index Reproductive Toxicity Calculator
Actual reproductive fertility-index definition pregnant/matedanimals; sex, sampling and pregnancy ascertainment independently qualified. Actual independently matched quantities/units required; not infer causal effect, clinical guidance or safe design.
Description
A fertility index can express confirmed pregnancies as a percentage of the documented mated group.
A fertility index can express confirmed pregnancies as a percentage of the documented mated group.1
The denominator, ascertainment and cohort must match before the percentage is interpreted.
When to use Fertility Index Reproductive Toxicity Calculator
Use this tool to calculate or review the supplied observations under the stated rules. Establish the chemical, exposure route, endpoint, measurement basis and independently applicable assay or assessment reference.
How to use Fertility Index Reproductive Toxicity Calculator and understand its results
- Establish the chemical, exposure route, endpoint, measurement basis and independently applicable assay or assessment reference.
- Enter actualIndependentlyConfirmedPregnantMatedAnimals, actualIndependentlyConfirmedMatedAnimals, using the field meanings and rules below, then run the tool.
- Read result.observedRatio. Use the units and subtraction order below to interpret each value; retain negative differences where returned.
- Correct any reported input issue and run again. Before using a successful result, check the stated units, signs, reference scope and observation coverage.
| Input field | Meaning | Value type | Requirement |
|---|---|---|---|
| actualIndependentlyConfirmedPregnantMatedAnimals | Actual independently confirmed pregnant mated animals | number | Required |
| actualIndependentlyConfirmedMatedAnimals | Actual independently confirmed mated animals | number | Required |
Require an integer denominator from 1 to 10000000 and an integer numerator from zero through that denominator. Return one hundred times their ratio as a percentage, not a fraction. The caller establishes which observations belong to both counts.
observedRatio=100×numerator/denominator Use the matching field units and the exact boundary, ordering and reference rules above.
| Output field | Meaning | Value type |
|---|---|---|
| result | Qualified observed calculation or explicit reference | object |
| result.observedRatio | One hundred times the eligible numerator count divided by the denominator count, expressed as percent. | number |
{
"input": {
"actualIndependentlyConfirmedPregnantMatedAnimals": 2,
"actualIndependentlyConfirmedMatedAnimals": 4
},
"output": {
"result": {
"observedRatio": 50
}
}
}Limitations and assumptions
Chemical identity, route, assay, exposure basis and reference applicability are caller-established. The output supplies no causal conclusion, universal toxicity threshold or authoritative regulatory determination.
Missing required fields, unknown fields, wrong types and violated rules return input issues. Numeric values and outputs must be finite. Extremely large composite outputs are rejected.
Alternative or Complementary methods
For a related step, use Micronucleus Frequency Calculator: Micronucleated-cell frequency counts cells classified as having micronuclei among eligible assessed cells. For a complementary comparison, use Chromosome Aberration Calculator: Aberrant-metaphase frequency counts eligible metaphases independently classified as aberrant.
References
Similar or alternative tools
- Micronucleus Frequency Calculator
Micronucleated-cell frequency counts cells classified as having micronuclei among eligible assessed cells.
- Chromosome Aberration Calculator
Aberrant-metaphase frequency counts eligible metaphases independently classified as aberrant.